Tohutoro APA (7th ed.)

Foster, R. J. (1979). Physical geology. Charles E. Merrill.

Tohutoru Kātū Chicago (17th ed.)

Foster, Robert J. Physical Geology. Columbus: Charles E. Merrill, 1979.

Tohutoro MLA (9th ed.)

Foster, Robert J. Physical Geology. Charles E. Merrill, 1979.