APA (7th ed.) Citation

Gerrard, J. (1988). Rocks and landforms / A.J. Gerrard. Unwin Hyman.

Chicago Style (17th ed.) Citation

Gerrard, John. Rocks and Landforms / A.J. Gerrard. London: Unwin Hyman, 1988.

MLA (9th ed.) Citation

Gerrard, John. Rocks and Landforms / A.J. Gerrard. Unwin Hyman, 1988.

Warning: These citations may not always be 100% accurate.