Environmental education series
Maloy, Otis C.
Environmental education series Pesticides for plant disease control - Washington 1981 - 1-6 p. - Environmental, Education, Pesticides, Plant, Disease Washington Cooperation Extension Services. Extension Bulletin No. 0774 .
632.95:632.38
Environmental education series Pesticides for plant disease control - Washington 1981 - 1-6 p. - Environmental, Education, Pesticides, Plant, Disease Washington Cooperation Extension Services. Extension Bulletin No. 0774 .
632.95:632.38