Cita APA

Beaver, S., & Derbyshire, E. (1974). Structural geomorphology. Longman.

Citación estilo Chicago

Beaver, S.H, y E. Derbyshire. Structural Geomorphology. London: Longman, 1974.

Cita MLA

Beaver, S.H, y E. Derbyshire. Structural Geomorphology. Longman, 1974.