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Oklahoma Agricultural Experiment Station, Bulletin no. 621, January 1964: Effect of changes in product price relationships on farm organization and income clay soil farms - Southwestern Oklahoma
(Oklahoma Agricultural Experiment Station, 1964-01)
Oklahoma Agricultural Experiment Station, Bulletin no. 625, May 1964: Effect of product prices on farm organization and income - sandyland farms - southwestern Oklahoma
(Oklahoma Agricultural Experiment Station, 1964-05)