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Sampling frames for agriculture in the United States
Fecso, Ron, (1986)
On comparing farm record association members to the farm population
Andersson, Hans, (1996)
Who does not respond to the agricultural resource management survey and does it matter?
Weber, Jeremy G., (2013)
Agricultural sustainability : the human dimension
Vogel, Frederic A., (2003)
Agricultural sustainability - the human dimension
Vogel, Fred, (2003)