Cita APA (7th ed.)

Clarke, C. (1993). The human environment. Hodder & Stoughton.

Cita Chicago (17th ed.)

Clarke, Calvin. The Human Environment. London: Hodder & Stoughton, 1993.

Cita MLA (9th ed.)

Clarke, Calvin. The Human Environment. Hodder & Stoughton, 1993.