APA (7. basım) Alıntı

Spencer, E. W. (1983). Physical geology. Addison-Wesley Pub. Co..

Chicago Style (17. basım) Atıf

Spencer, Edgar Winston. Physical Geology. Reading, Mass.: Addison-Wesley Pub. Co., 1983.

MLA (9th ed.) Atıf

Spencer, Edgar Winston. Physical Geology. Addison-Wesley Pub. Co., 1983.