APA (7th ed.) Citation

Pipiringos, G. N., Bergman, S. C., & Trent, V. A. (1968). Geologic map of the Ezel quadrangle, Morgan and Menifee Counties, Kentucky. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Pipiringos, G. N., S. C. Bergman, and Virgil A. Trent. Geologic Map of the Ezel Quadrangle, Morgan and Menifee Counties, Kentucky. Washington, D.C.: U.S. Geological Survey, 1968.

MLA (9th ed.) Citation

Pipiringos, G. N., et al. Geologic Map of the Ezel Quadrangle, Morgan and Menifee Counties, Kentucky. U.S. Geological Survey, 1968.