File:Complete Treatise on Agriculture.jpg

Summary
{{Non-free use rationale book cover }}
 * Article = :Complete Treatise on Agriculture
 * Title  = Complete Treatise on Agriculture
 * Author = Xu Guangqi {{cite web]]
 * Source = http://books.google.com/books/content?id=x6xBDgAAQBAJ&printsec=frontcover&img=1&zoom=1&edge=none&source=gbs_api
 * Use    = Infobox