Cita APA (7th ed.)

Morgan, M. D., Moran, J. M., & Wieresma, J. H. (1993). Environmental science: Managing biological and physical resources. WmC Brown.

Cita Chicago (17th ed.)

Morgan, Michael D., Joseph M. Moran, i James H. Wieresma. Environmental Science: Managing Biological and Physical Resources. Dubuque, IA: WmC Brown, 1993.

Cita MLA (9th ed.)

Morgan, Michael D., et al. Environmental Science: Managing Biological and Physical Resources. WmC Brown, 1993.