Cita APA (7th ed.)

Chorley, R. J., & Haggett, P. (1967). Models in geography. Methuen-Co.

Cita Chicago (17th ed.)

Chorley, Richard J., i Peter Haggett. Models in Geography. Londres: Methuen-Co, 1967.

Cita MLA (9th ed.)

Chorley, Richard J., i Peter Haggett. Models in Geography. Methuen-Co, 1967.