Proceedings of symposia, IX International Congress of Plant Protection, Washington, D.C. U.S.A., August 5-11, 1979 /
editor, Thor Kommedahl.

APA Citation

International Congress of Plant Protection (9th : 1979 : Washington, D., Kommedahl, T. (1981). Proceedings of symposia, IX International Congress of Plant Protection, Washington, D.C. U.S.A., August 5-11, 1979. Minneapolis, Minn.: published for the Congress by Burgess Pub..

MLA Citation

International Congress of Plant Protection (9th : 1979 : Washington, D.C.), and Thor Kommedahl. Proceedings of Symposia, IX International Congress of Plant Protection, Washington, D.C. U.S.A., August 5-11, 1979. Minneapolis, Minn.: published for the Congress by Burgess Pub., 1981.