APA (7th ed.) Citation

Moran, J. M., Morgan, M. D., & Wiersma, J. H. (1973). An introduction to environmental sciences. Little Brown.

Chicago Style (17th ed.) Citation

Moran, Joseph M., Michael D. Morgan, and James H. Wiersma. An Introduction to Environmental Sciences. Boston: Little Brown, 1973.

MLA (9th ed.) Citation

Moran, Joseph M., et al. An Introduction to Environmental Sciences. Little Brown, 1973.