R C Leffel. (1961). Planting date and varietial effects on agronomic and seed compositional characters in soybeans. Maryland: University of Maryland.
استشهاد بنمط شيكاغوR C Leffel. Planting Date and Varietial Effects On Agronomic and Seed Compositional Characters in Soybeans. Maryland: University of Maryland, 1961.
MLA استشهادR C Leffel. Planting Date and Varietial Effects On Agronomic and Seed Compositional Characters in Soybeans. Maryland: University of Maryland, 1961.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.