APA (7th ed.) Citation

Richardson, G. B. (1932). Geology and coal, oil and gas resources of the New Kensington quadrangle, Pennsylvania. United States Department of the Interior, Geological Survey.

Chicago Style (17th ed.) Citation

Richardson, G. B. Geology and Coal, Oil and Gas Resources of the New Kensington Quadrangle, Pennsylvania. [Washington, D.C.]: United States Department of the Interior, Geological Survey, 1932.

MLA (9th ed.) Citation

Richardson, G. B. Geology and Coal, Oil and Gas Resources of the New Kensington Quadrangle, Pennsylvania. United States Department of the Interior, Geological Survey, 1932.