Cita APA (7th ed.)

Leet, L. D. (1982). Physical geology. Prentice-Hall.

Cita Chicago (17th ed.)

Leet, L. Don. Physical Geology. Englewood Cliffs: Prentice-Hall, 1982.

Cita MLA (9th ed.)

Leet, L. Don. Physical Geology. Prentice-Hall, 1982.