| Title | Edition | Year of Publication | Role | Country of Publication | Possible Copyright Status | Available Online? |
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| Ludendorif's own story, August 1914-November 1918; the great war from the siege of Liege to, the signing of the armistice as viewed from the Grand headquarters of the German army | | 1920 | Author |  |  |  | | |
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| Manual for the essence industry: comprising the most modern methods for making all kinds of essences for liquors, brandies, liqueurs, and all alcoholic drinks, fruit-juices, fruit-wines and jams. Also, manufacturing mineral waters; essences of fruits and other vegetable raw materials; fancy lemonades of every kind; essences for confectionery, pastry, and the kitchen; manufacturing colors and perfumes, as well as cosmetics and soap perfumes, with a full description of raw materials and of laboratory practice | 1st ed. 1st thousand. | 1916 | Author | | | | | |    
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| Paprika | | 1935 | Author | | | | |  |
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Public Domain Books