Coburn, F. D. (1907). Alfalfa, lucerne, Spanish trefoil, Chilian clover, Brazilian clover, French clover, medic, purple medic -- (Medicago sativa): Practical information on its production, qualities, worth and uses, especially in the United States and Canada. Orange Judd Co..
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)Coburn, F. D. Alfalfa, Lucerne, Spanish Trefoil, Chilian Clover, Brazilian Clover, French Clover, Medic, Purple Medic -- (Medicago Sativa): Practical Information on Its Production, Qualities, Worth and Uses, Especially in the United States and Canada. New York: Orange Judd Co., 1907.
Trích dẫn kiểu MLA (xuất bản lần thứ 8)Coburn, F. D. Alfalfa, Lucerne, Spanish Trefoil, Chilian Clover, Brazilian Clover, French Clover, Medic, Purple Medic -- (Medicago Sativa): Practical Information on Its Production, Qualities, Worth and Uses, Especially in the United States and Canada. Orange Judd Co., 1907.