Cita APA (7th ed.)

Morgan, M. D., Moran, J. M., & Wiersman, J. H. (1993). Environmental science: Managing biological & physical resources. W.C. Brown.

Cita Chicago (17th ed.)

Morgan, Michael D., Joseph M. Moran, i James H. Wiersman. Environmental Science: Managing Biological & Physical Resources. Dubuque, Iowa: W.C. Brown, 1993.

Cita MLA (9th ed.)

Morgan, Michael D., et al. Environmental Science: Managing Biological & Physical Resources. W.C. Brown, 1993.