Cita APA (7a ed.)

Savage, E. L., & Biren, H. A. (1978). Study guide: Pulnam's geology : Brikeland and Larson (3rd ed.). Oxford University Press.

Cita Chicago Style (17a ed.)

Savage, E. Lynn, y Helen A. Biren. Study Guide: Pulnam's Geology : Brikeland and Larson. 3rd ed. New York: Oxford University Press, 1978.

Cita MLA (8a ed.)

Savage, E. Lynn, y Helen A. Biren. Study Guide: Pulnam's Geology : Brikeland and Larson. 3rd ed. Oxford University Press, 1978.