APA (7th ed.) Citation

Harley, J. L., & Smith, S. E. (1983). Mycorrhizal symbiosis. Academic Press.

Chicago Style (17th ed.) Citation

Harley, J. L., and Sally E. Smith. Mycorrhizal Symbiosis. London [etc.]: Academic Press, 1983.

MLA (9th ed.) Citation

Harley, J. L., and Sally E. Smith. Mycorrhizal Symbiosis. Academic Press, 1983.