Cita APA (7a ed.)
Enger, E. D., Smith, B. F., & Bockarie, A. T. (2006). Environmental science: A study of interrelationships (10th ed.). McGraw-Hill.
Cita Chicago Style (17a ed.)
Enger, Eldon D., Bradley F. Smith, y Anne Todd Bockarie. Environmental Science: A Study of Interrelationships. 10th ed. Boston: McGraw-Hill, 2006.
Cita MLA (9a ed.)
Enger, Eldon D., et al. Environmental Science: A Study of Interrelationships. 10th ed. McGraw-Hill, 2006.
Precaución: Estas citas no son 100% exactas.