Não informado. (2022). North Dakota Research Report. North Dakota State University, Department of Horticulture Agricultural Experiment Station.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. North Dakota Research Report. Fargo, ND: North Dakota State University, Department of Horticulture Agricultural Experiment Station, 2022.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. North Dakota Research Report. North Dakota State University, Department of Horticulture Agricultural Experiment Station, 2022.
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