APA (7th ed.) Citation

American Phytopathological Society, Holmes, F. W., & Heybroek, H. M. (1990). Dutch elm disease: The early papers. APS Press.

Chicago Style (17th ed.) Citation

American Phytopathological Society, Francis W. Holmes, and H. M. Heybroek. Dutch Elm Disease: The Early Papers. St. Paul, Minn.: APS Press, 1990.

MLA (9th ed.) Citation

American Phytopathological Society, et al. Dutch Elm Disease: The Early Papers. APS Press, 1990.