Cita APA (7th ed.)

Myers, N., & Spoolman, S. E. (2014). Environmental issues & solutions: A modular approach (International edition.). Brooks/Cole, Cengage Learning.

Cita Chicago (17th ed.)

Myers, Norman, i Scott E. Spoolman. Environmental Issues & Solutions: A Modular Approach. International edition. Australia: Brooks/Cole, Cengage Learning, 2014.

Cita MLA (9th ed.)

Myers, Norman, i Scott E. Spoolman. Environmental Issues & Solutions: A Modular Approach. International edition. Brooks/Cole, Cengage Learning, 2014.