Gunn, Charles R., 1927-

Identification of disseminules listed in the Federal noxious weed act - Washington (D.C.) U.S. Dept. of Agriculture, Agricultural Research Service 1988 - v, 313 p. il. ; 28 cm. - Technical bulletin / United States. Dept. of Agriculture .

Incluye bibliografía (p. 189) e índice


MALEZAS
ESTADOS UNIDOS
PLANTAS NOCIVAS
IDENTIFICACION
LEGISLACION