Cita APA (7th ed.)

Tarbuck, E. J. (1984). The earth: An introduction to physical geology. Charles E.Merrill.

Cita Chicago (17th ed.)

Tarbuck, Edward J. The Earth: An Introduction to Physical Geology. Columbus: Charles E.Merrill, 1984.

Cita MLA (9th ed.)

Tarbuck, Edward J. The Earth: An Introduction to Physical Geology. Charles E.Merrill, 1984.

Atenció: Aquestes cites poden no estar 100% correctes.