Isern, T. D. (1990). Bull Threshers and Bindlestiffs: Harvesting and Threshing on the North American Plains. University Press of Kansas.
Citace podle Chicago (17th ed.)Isern, Thomas D. Bull Threshers and Bindlestiffs: Harvesting and Threshing on the North American Plains. Lawrence, Kan.: University Press of Kansas, 1990.
Citace podle MLA (9th ed.)Isern, Thomas D. Bull Threshers and Bindlestiffs: Harvesting and Threshing on the North American Plains. University Press of Kansas, 1990.
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