APA-referens

Attewell, P. B., & Farmer, I. W. (1976). Principles of Engineering Geology. Chapman & Hall.

Chicago-stil citat

Attewell, P. B., och I. W. Farmer. Principles of Engineering Geology. London: Chapman & Hall, 1976.

MLA-referens

Attewell, P. B., och I. W. Farmer. Principles of Engineering Geology. Chapman & Hall, 1976.