APA (7th ed.) Citation

White, W. B., Holsinger, J. R., & Guilday, J. E. (1976). Geology and biology of Pennsylvania caves. Commonwealth of Pennsylvania, Dept. of Environmental Resources, Bureau of Topographic and Geologic Survey : may be purchased from State Book Store.

Chicago Style (17th ed.) Citation

White, William B., John R. Holsinger, and John E. Guilday. Geology and Biology of Pennsylvania Caves. Harrisburg: Commonwealth of Pennsylvania, Dept. of Environmental Resources, Bureau of Topographic and Geologic Survey : may be purchased from State Book Store, 1976.

MLA (9th ed.) Citation

White, William B., et al. Geology and Biology of Pennsylvania Caves. Commonwealth of Pennsylvania, Dept. of Environmental Resources, Bureau of Topographic and Geologic Survey : may be purchased from State Book Store, 1976.