R C Leffel. (1961). Planting date and varietial effects on agronomic and seed compositional characters in soybeans. Maryland: University of Maryland.
Citación estilo ChicagoR C Leffel. Planting Date and Varietial Effects On Agronomic and Seed Compositional Characters in Soybeans. Maryland: University of Maryland, 1961.
Cita MLAR C Leffel. Planting Date and Varietial Effects On Agronomic and Seed Compositional Characters in Soybeans. Maryland: University of Maryland, 1961.
Cảnh báo: Các trích dẫn này có thể không phải lúc nào cũng chính xác 100%.