Gunn, C.R. 1970. Seeds of the tribe Vicieae (Leguminosae) in North American agriculture. Proceedings of the Association of Official Seed Analysts. 60: 48-70.
Gunn, C.R. 1970. Seeds of the tribe Vicieae (Leguminosae) in North American agriculture. Proceedings of the Association of Official Seed Analysts. 60: 48-70.