Cita APA (7a ed.)

LeRoy, L. W. (1950). Subsurface geologic methods (2nd ed.). Colorado School of Mines.

Cita Chicago Style (17a ed.)

LeRoy, L. W. Subsurface Geologic Methods. 2nd ed. Golden, Colorado: Colorado School of Mines, 1950.

Cita MLA (8a ed.)

LeRoy, L. W. Subsurface Geologic Methods. 2nd ed. Colorado School of Mines, 1950.