APA استشهاد

Sherbon Hills, E. (1972). Elements of Structural Geology (Second.). Chapman & Hall.

استشهاد بنمط شيكاغو

Sherbon Hills, E. Elements of Structural Geology. Second. London: Chapman & Hall, 1972.

MLA استشهاد

Sherbon Hills, E. Elements of Structural Geology. Second. Chapman & Hall, 1972.