{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Highest return farming systems for Tama and Muscatine soils: an application of linear programming to 240- and 480- acre farms operated by two men","author_name":"G A. Peterson, E R. 1921- Swanson","thumbnail_url":"https://www.ebooknetworking.net/books/117/609/big1176096168.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1176096168.html\">Highest return farming systems for Tama and Muscatine soils: an application of linear programming to 240- and 480- acre farms operated by two men</a>","width":400,"height":300}