Cita APA (7th ed.)

Lean, G., & Hinrichsen, D. (1992). Atlas of the Environment (New ed.). Helicon.

Cita Chicago (17th ed.)

Lean, Geoffrey, i Don Hinrichsen. Atlas of the Environment. New ed. Oxford, England: Helicon, 1992.

Cita MLA (8th ed.)

Lean, Geoffrey, i Don Hinrichsen. Atlas of the Environment. New ed. Helicon, 1992.