Não informado. (2022). Miscellaneous Publications. Oklahoma Agricultural Experiment Station.
Lua i Stíl Chicago (17ú heag.)Não informado. Miscellaneous Publications. Stillwater, Okla: Oklahoma Agricultural Experiment Station, 2022.
Lua MLA (8ú heag.)Não informado. Miscellaneous Publications. Oklahoma Agricultural Experiment Station, 2022.
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