Cita APA (7th ed.)

Billings, M. P. (1964). Structural geology. Prentice-Hall.

Cita Chicago (17th ed.)

Billings, Marland P. Structural Geology. New Jersey: Prentice-Hall, 1964.

Cita MLA (9th ed.)

Billings, Marland P. Structural Geology. Prentice-Hall, 1964.