Dyfyniad APA

Burchfiel, B. C. (1982). Physical geology: The structure and processes of the earth. Merrill Pub.

Dyfyniad Arddull Chicago

Burchfiel, B. C. Physical Geology: The Structure and Processes of the Earth. Columbus: Merrill Pub, 1982.

Dyfyniad MLA

Burchfiel, B. C. Physical Geology: The Structure and Processes of the Earth. Merrill Pub, 1982.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.