Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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