Morgan, M. D., & Moran, J. M. (1993). Environmental science: Managing biological & physical resources. W.C. Brown.
Cita Chicago (17th ed.)Morgan, Michael D., i Joseph M. Moran. Environmental Science: Managing Biological & Physical Resources. Dubuque, IA: W.C. Brown, 1993.
Cita MLA (9th ed.)Morgan, Michael D., i Joseph M. Moran. Environmental Science: Managing Biological & Physical Resources. W.C. Brown, 1993.
Atenció: Aquestes cites poden no estar 100% correctes.