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Measuring the supply and utilization of farm commodities
(1955)
Predicting regional crop production
Schaller, W. Neill, (1965)
Field crops : estimates by states 1969-74
(1977)
New Methods for Filbert Objective Yield Estimation
Wigton, William H., (1972)
Predicting yields from objective counts and measurements
Kibler, William E., (1968)