APA (7th ed.) Citation

Thorpe, R. S., & Brown, G. C. (1985). The field description of igneous rocks. Open University Press ; Halsted.

Chicago Style (17th ed.) Citation

Thorpe, R. S., and G. C. Brown. The Field Description of Igneous Rocks. Milton Keynes [Buckinghamshire] : New York: Open University Press ; Halsted, 1985.

MLA (9th ed.) Citation

Thorpe, R. S., and G. C. Brown. The Field Description of Igneous Rocks. Open University Press ; Halsted, 1985.