APA (7th ed.) Citation

O'Neill, B. J., & Barnes, J. H. (1981). Properties and uses of shales and clays, south-central Pennsylvania. Commonwealth of Pennsylvania, Dept. of Environmental Resources, Office of Resources Management, Bureau of Topographic and Geologic Survey : May be purchased from State Book Store.

Chicago Style (17th ed.) Citation

O'Neill, Bernard J., and John Henry Barnes. Properties and Uses of Shales and Clays, South-central Pennsylvania. Harrisburg: Commonwealth of Pennsylvania, Dept. of Environmental Resources, Office of Resources Management, Bureau of Topographic and Geologic Survey : May be purchased from State Book Store, 1981.

MLA (9th ed.) Citation

O'Neill, Bernard J., and John Henry Barnes. Properties and Uses of Shales and Clays, South-central Pennsylvania. Commonwealth of Pennsylvania, Dept. of Environmental Resources, Office of Resources Management, Bureau of Topographic and Geologic Survey : May be purchased from State Book Store, 1981.