APA (7th ed.) Citation

Folk, R. L. (1968). Petrology of sedimentary rocks. Hemphill's.

Chicago Style (17th ed.) Citation

Folk, Robert L. Petrology of Sedimentary Rocks. Hemphill's, 1968.

MLA (8th ed.) Citation

Folk, Robert L. Petrology of Sedimentary Rocks. Hemphill's, 1968.

Warning: These citations may not always be 100% accurate.