Genus vicia with notes about tribe vicieae (fabaceae) in México and Central América /

por Gunn, Charles R. 1927-
Publicado 1979

Families and genera of spermatophytes recognized by the Agricultural Research Service /

por Gunn, Charles R. 1927-
Publicado 1992

World guide to Tropical drift seeds and fruits /

por Gunn, Charles R. 1927-
Publicado 1976

Classification of medicago sativa L. using legume characters and flower colors /

por Gunn, Charles R. 1927-, Gunn, Charles R. 1927-, Spencer, H.C., Skrdla, W.H.
Publicado 1978