1. The impact of genetically engineered crops on farm sustainability in the United States Author/Creator: National Research Council (U.S.). Committee on the Impact of Biotechnology on Farm-Level Economics and Sustainability Publication/Creation: Washington, D.C. : National Academies Press, c2010 Format: Book Edition: 1st ed. Access & Availability: Loading
2. Industry and Agriculture in the North and South, 1860 Publication/Creation: [S.l.] : Maps.com, c2000 Format: Map Access & Availability: Loading