Cita APA (7a ed.)

Miller, G. T., & Spoolman, S. (2015). Sustaining the Earth (Eleventh edition.). Cengage Learning.

Cita Chicago Style (17a ed.)

Miller, G. Tyler, y Scott Spoolman. Sustaining the Earth. Eleventh edition. Australia: Cengage Learning, 2015.

Cita MLA (9a ed.)

Miller, G. Tyler, y Scott Spoolman. Sustaining the Earth. Eleventh edition. Cengage Learning, 2015.