APA (7th ed.) Citation

Walker, F. K., & Averitt, P. (1975). Bibliography and index of U.S. Geological Survey publications relating to coal, January 1971-June 1974. United States Department of the Interior, Geological Survey.

Chicago Style (17th ed.) Citation

Walker, Flora K., and Paul Averitt. Bibliography and Index of U.S. Geological Survey Publications Relating to Coal, January 1971-June 1974. [Reston, Virginia]: United States Department of the Interior, Geological Survey, 1975.

MLA (9th ed.) Citation

Walker, Flora K., and Paul Averitt. Bibliography and Index of U.S. Geological Survey Publications Relating to Coal, January 1971-June 1974. United States Department of the Interior, Geological Survey, 1975.

Warning: These citations may not always be 100% accurate.