| 词条 | Handbibliothek des allgemeinen und praktischen Wissens |
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}}{{italic title}} Handbibliothek des allgemeinen und praktischen Wissens (German for "Handbook of common and practical knowledge") is a series of two textbooks for self-education. Edited by Emanuel Müller-Baden, it was first published in Germany in 1920 by Deutsches Verlagshaus Bong & Co. ContentThe first volume treats the German, French and English languages, and offers courses in handwriting and shorthand. But it also expands on subjects like engine construction and accounting. Volume two consists of lessons on natural science, geography, law and mathematics. {{edu-book-stub}} 2 : 1920 books|Textbooks |
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开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。