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Estimating variations in production and income over time in farm plans for the Great Plains
Helfinstine, Rex D. - In: Journal of farm economics 41 (1959) 2, pp. 262-267
Persistent link: https://www.econbiz.de/10002761175
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Resource requirements for different levels of income on Faulk County farms and ranches
Umberger, Dwaine E.; Helfinstine, Rex D. - 1968
Persistent link: https://www.econbiz.de/10003249431
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Crop acreage, yields and production in South Dakota, 1926-1960, by economic areas and counties
Pengra, Ray F.; Helfinstine, Rex D. - 1961
Persistent link: https://www.econbiz.de/10002629478
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Economic potentials of irrigated and dryland farming in Central South Dakota
Helfinstine, Rex D. - 1955
Persistent link: https://www.econbiz.de/10003067243
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Farm plans for wheat farmers in North Central South Dakota
Helfinstine, Rex D. - 1960
Persistent link: https://www.econbiz.de/10002761194