Cita APA

Billings, M. P. n. 1., & Billings, M. P. n. 1. (1954). Structural geology (2. edition.). Englewood Cliffs, N.J.

Citación estilo Chicago

Billings, Marland Pratt n. 1902, y Marland Pratt n. 1902 Billings. Structural Geology. 2. edition. Englewood Cliffs, N.J, 1954.

Cita MLA

Billings, Marland Pratt n. 1902, y Marland Pratt n. 1902 Billings. Structural Geology. 2. edition. Englewood Cliffs, N.J, 1954.