APA (7th ed.) Citation

Geological Survey (U.S.), Kradyna, J. W., & Rice, C. L. (1986). Generalized fence diagram showing principal coal and key marine beds of Pennsylvanian age in the Hazard 30ʹ x 60ʹ quadrangle, eastern Kentucky. The Survey.

Chicago Style (17th ed.) Citation

Geological Survey (U.S.), James W. Kradyna, and Charles L. Rice. Generalized Fence Diagram Showing Principal Coal and Key Marine Beds of Pennsylvanian Age in the Hazard 30ʹ X 60ʹ Quadrangle, Eastern Kentucky. Reston, Va.: The Survey, 1986.

MLA (9th ed.) Citation

Geological Survey (U.S.), et al. Generalized Fence Diagram Showing Principal Coal and Key Marine Beds of Pennsylvanian Age in the Hazard 30ʹ X 60ʹ Quadrangle, Eastern Kentucky. The Survey, 1986.