Cita APA (7th ed.)

Hanwell, . J., & Newson , M. (1973). Techniques in physical geography. Macmillan.

Cita Chicago (17th ed.)

Hanwell, James, i Malcolm Newson. Techniques in Physical Geography. London: Macmillan, 1973.

Cita MLA (9th ed.)

Hanwell, James, i Malcolm Newson. Techniques in Physical Geography. Macmillan, 1973.