APA (7th ed.) Citation

Geological Survey (U.S.), Owens, J. P., & Minard, J. P. (1964). Pre-Quaternary geology of the Bristol quadrangle, New Jersey-Pennsylvania. The Survey.

Chicago Style (17th ed.) Citation

Geological Survey (U.S.), James Patrick Owens, and James P. Minard. Pre-Quaternary Geology of the Bristol Quadrangle, New Jersey-Pennsylvania. Reston, Va.: The Survey, 1964.

MLA (9th ed.) Citation

Geological Survey (U.S.), et al. Pre-Quaternary Geology of the Bristol Quadrangle, New Jersey-Pennsylvania. The Survey, 1964.