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How the United States improved its agriculture
Christensen, Raymond P.; Hendrix, William E.; Stevens, … - 1964
Persistent link: https://www.econbiz.de/10001592827
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The mechanics of agricultural productivity and economic growth
Christensen, Raymond P.; Yee, Harold T. - In: Agricultural economics research : a journal of economic … 16 (1964) 3, pp. 65-71
Persistent link: https://www.econbiz.de/10002000538
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Growth rates and economic development
Butler, William F.; Christensen, Raymond P.; Yee, Harold T. - In: Journal of farm economics 46 (1964) 5, pp. 1043-1064
Persistent link: https://www.econbiz.de/10001969478