APA (7th ed.) Citation

Wojtal, S. F. (1997). "Chisel marks" on columnar joint face. Oberlin College Library.

Chicago Style (17th ed.) Citation

Wojtal, Steven F. "Chisel Marks" on Columnar Joint Face. Oberlin College Library, 1997.

MLA (9th ed.) Citation

Wojtal, Steven F. "Chisel Marks" on Columnar Joint Face. Oberlin College Library, 1997.

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