History of U.S. Federal and State Governments' Work with Soybeans (1862-2017)

by William Shurtleff; Akiko Aoyagi

2017 · Soyinfo Center

The world's most comprehensive, well documented, and well illustrated book on this subject. With extensive subject and geographical index. 362 photographs and illustrations. Free of charge in digital PDF format on Google Books

Origin and Early History of Peanut Butter (1884-2015)

by William Shurtleff; Akiko Aoyagi

2015 · Soyinfo Center

The world's most comprehensive, well documented, and well illustrated book on this subject. With extensive index, 150 color photographs and illustrations. Free of charge in digital PDF format on Google Books.