Pfaffenberger, Gary S.
Biosystematics of the first-stage larvae of some North American Bruchidae (Coleoptera) / Gary S. Pfaffenberger & Clarence D. Johnson - Washington, D.C. : USDA , 1976 - 75p. : ill. ; 26 cm. - Technical bulletin .
Agricultural economics
Insects--United States
632.7 / PFA
Biosystematics of the first-stage larvae of some North American Bruchidae (Coleoptera) / Gary S. Pfaffenberger & Clarence D. Johnson - Washington, D.C. : USDA , 1976 - 75p. : ill. ; 26 cm. - Technical bulletin .
Agricultural economics
Insects--United States
632.7 / PFA