I am a language model AI and do not have physical items such as Brockhaus encyclopedias. However, I have access to a wide range of information and can provide answers to questions based on the knowledge available to me. If you have specific questions or need information on a particular topic, feel free to ask and I will do my best to assist you. **

The Brockhaus encyclopedia became extinct due to the decline in demand for print encyclopedias in the digital age. With the rise of the internet and easily accessible online information, the traditional print encyclopedia became less relevant and practical for consumers. Additionally, the high cost of producing and updating print editions made it difficult for the Brockhaus to compete with free and constantly updated online resources. As a result, the company ceased production of the print edition in 2014, marking the end of the Brockhaus encyclopedia. **

One can sell the Brockhaus by listing it for sale on online marketplaces such as eBay, Amazon, or specialized book-selling websites. It can also be sold through local classified ads or by reaching out to antique bookstores or collectors who may be interested in purchasing it. Additionally, one can consider selling it at book fairs or auctions where collectors and enthusiasts gather to buy and sell rare and valuable books. **

The Brockhaus of 1894 refers to the Brockhaus Enzyklopädie, a renowned German-language encyclopedia first published in 1796. The 1894 edition was a comprehensive reference work that covered a wide range of topics, including history, science, literature, and the arts. It was known for its authoritative articles and was considered a standard reference for knowledge and information during that time. The Brockhaus Enzyklopädie was highly regarded for its accuracy and depth of coverage, and it remained a respected source of information for many years. **

The Brockhaus Encyclopedia is a prestigious and comprehensive reference work that is highly valued for its depth and accuracy. It is not possible to give an exact value for the entire encyclopedia, as it is a collection of volumes that cover a wide range of topics. However, individual volumes or sets of the Brockhaus Encyclopedia can be quite valuable, especially if they are rare or in excellent condition. Prices can vary widely depending on factors such as edition, condition, and demand from collectors. **

To correctly cite an entry from the Brockhaus Encyclopedia online, you should include the author's name (if available), the title of the entry, the title of the encyclopedia (Brockhaus Encyclopedia), the publication year (if available), the URL of the specific entry, and the date you accessed the information. For example: Author Last Name, First Name. "Title of Entry." Brockhaus Encyclopedia. Publication Year, URL. Accessed Day Month Year. **

The value of the Great Brockhaus can vary depending on its condition, edition, and rarity. Generally, a complete and well-preserved set of the Great Brockhaus encyclopedia can be quite valuable to collectors and historians due to its comprehensive coverage of a wide range of topics. Additionally, older editions or limited print runs may fetch higher prices in the antiquarian book market. Overall, the value of the Great Brockhaus is determined by its historical significance, condition, and demand among collectors. **

The value of 20 Brockhaus books can vary depending on factors such as the edition, condition, and rarity of the books. Generally, Brockhaus books are known for their high quality and comprehensive content, so a set of 20 books could be quite valuable to collectors or individuals interested in reference materials. It is recommended to research the specific titles and editions of the Brockhaus books to determine their current market value. **