Dyfyniad APA

Tarbuck, E. J. (2009). The earth: An introduction to physical geology. Columbus: C.E. Merrill Pub. Co.

Dyfyniad Arddull Chicago

Tarbuck, Edward J. The Earth: An Introduction to Physical Geology. Columbus: C.E. Merrill Pub. Co, 2009.

Dyfyniad MLA

Tarbuck, Edward J. The Earth: An Introduction to Physical Geology. Columbus: C.E. Merrill Pub. Co, 2009.

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