APA (7th ed.) Citation

Bold, H. C., Alexopoulos, C. J., & Delevoryas, T. (1980). Morphology of plants and fungi (4th ed.). Harper and Row.

Chicago Style (17th ed.) Citation

Bold, Harold Charles, Constantine John Alexopoulos, and Theodore Delevoryas. Morphology of Plants and Fungi. 4th ed. New York: Harper and Row, 1980.

MLA (9th ed.) Citation

Bold, Harold Charles, et al. Morphology of Plants and Fungi. 4th ed. Harper and Row, 1980.