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Energy and the use of conservation tillage in US agriculture
Uri, Noel Dean, (1999)
Conservation tillage and the use of energy and other inputs in US agriculture
Uri, Noel D., (1999)
Agricultural resources and environmental indicators
Wiebe, Keith D., (2007)
The farm financial crisis : socioeconomic dimensions and implications for producers and rural areas
Murdock, Steve H., (1988)
An America challenged : population change and the future of the United States
Murdock, Steve H., (1995)
The sociology of US agriculture : an ecological perspective
Albrecht, Don E., (1990)