APA (7th ed.) Citation

Harley, J. L. (1969). The biology of mycorrhiza (2nd ed.). Leonard Hill.

Chicago Style (17th ed.) Citation

Harley, J. L. The Biology of Mycorrhiza. 2nd ed. London: Leonard Hill, 1969.

MLA (9th ed.) Citation

Harley, J. L. The Biology of Mycorrhiza. 2nd ed. Leonard Hill, 1969.