APA (7th ed.) Citation

Spencer, D. M. (1981). The Downy mildews. Academic Press.

Chicago Style (17th ed.) Citation

Spencer, D. M. The Downy Mildews. London: Academic Press, 1981.

MLA (9th ed.) Citation

Spencer, D. M. The Downy Mildews. Academic Press, 1981.

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