Malin, J. C. (1950). Grassland historical studies: Natural resources utlization in a background of science and technology. [s.n.
Citace podle Chicago (17th ed.)Malin, James Claude. Grassland Historical Studies: Natural Resources Utlization in a Background of Science and Technology. Lawrence, Kan: [s.n, 1950.
Citace podle MLA (9th ed.)Malin, James Claude. Grassland Historical Studies: Natural Resources Utlization in a Background of Science and Technology. [s.n, 1950.
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