APA (7th ed.) Citation

GILLULY, J., & WOODFORD, A. O. (1975). PRINCIPLES OF GEOLOGY (4a. ED.). FREEMAN.

Chicago Style (17th ed.) Citation

GILLULY, JAMES, and A. O. WOODFORD. PRINCIPLES OF GEOLOGY. 4a. ED. SAN FRANCISCO: FREEMAN, 1975.

MLA (9th ed.) Citation

GILLULY, JAMES, and A. O. WOODFORD. PRINCIPLES OF GEOLOGY. 4a. ED. FREEMAN, 1975.