Ward, R. E., & Tietema, S. J. (1956). Indians in agriculture. Missouri River Basin Investigations Project, Bureau of Indian Affairs, U.S. Dept. of the Interior.
Cita Chicago Style (17a ed.)Ward, Ralph E., y Sidney J. Tietema. Indians in Agriculture. Bozeman, Mont.: Missouri River Basin Investigations Project, Bureau of Indian Affairs, U.S. Dept. of the Interior, 1956.
Cita MLA (8a ed.)Ward, Ralph E., y Sidney J. Tietema. Indians in Agriculture. Missouri River Basin Investigations Project, Bureau of Indian Affairs, U.S. Dept. of the Interior, 1956.
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