APA Edition Citation

Irvine, D. E. G., & John, D. M. (1984). Systematics of the green algae. Academic.

Chicago Edition Citation

Irvine, D. E. G., and D. M. John. Systematics of the Green Algae. New York: Academic, 1984.

MLA Edition Citation

Irvine, D. E. G., and D. M. John. Systematics of the Green Algae. Academic, 1984.