APA Citation

Kommedahl, T., & Williams, P. H. (1983). Challenging problems in plant health. California (EUA): American Phytopathological Society.

Chicago Style Citation

Kommedahl, Thor, and Paul H. Williams. Challenging Problems in Plant Health. California (EUA): American Phytopathological Society, 1983.

MLA Citation

Kommedahl, Thor, and Paul H. Williams. Challenging Problems in Plant Health. California (EUA): American Phytopathological Society, 1983.

Warning: These citations may not always be 100% accurate.