Cita APA (7th ed.)

Miller, G. T., & Spoolman, S. E. (2021). Living in the environment (Twentieth edition.). Cengage Learning.

Cita Chicago (17th ed.)

Miller, G. Tyler, i Scott E. Spoolman. Living in the Environment. Twentieth edition. Boston: Cengage Learning, 2021.

Cita MLA (9th ed.)

Miller, G. Tyler, i Scott E. Spoolman. Living in the Environment. Twentieth edition. Cengage Learning, 2021.