APA (7th ed.) Citation

Roberts, A. M., Yielding, G., & Freeman, B. (1991). The geometry of normal faults. Geological Society.

Chicago Style (17th ed.) Citation

Roberts, A. M., G. Yielding, and B. Freeman. The Geometry of Normal Faults. London: Geological Society, 1991.

MLA (9th ed.) Citation

Roberts, A. M., et al. The Geometry of Normal Faults. Geological Society, 1991.