Cita APA (7a ed.)

Petford, N., & McCaffrey, K. (2003). Hydrocarbons in crystalline rocks. Geological Society.

Cita Chicago Style (17a ed.)

Petford, N., y Ken McCaffrey. Hydrocarbons in Crystalline Rocks. London: Geological Society, 2003.

Cita MLA (8a ed.)

Petford, N., y Ken McCaffrey. Hydrocarbons in Crystalline Rocks. Geological Society, 2003.