APA (7th ed.) Citation

Clark, L. R., Geier, P. W., Hughes, R. D., & Morris, R. F. (1968). The Ecology of insect populations in theory and practice. Methuen and Coltd.

Chicago Style (17th ed.) Citation

Clark, L. R., P. W. Geier, R. D. Hughes, and R. F. Morris. The Ecology of Insect Populations in Theory and Practice. London: Methuen and Coltd, 1968.

MLA (9th ed.) Citation

Clark, L. R., et al. The Ecology of Insect Populations in Theory and Practice. Methuen and Coltd, 1968.