APA (7th ed.) Citation

Black, D. F. B., Cressman, E. R., & MacQuown, W. C., Jr. (1965). The Lexington limestone (Middle Ordovician) of central Kentucky. United States Department of the Interior, Geological Survey.

Chicago Style (17th ed.) Citation

Black, Douglas F. B., Earle Rupert Cressman, and William C. MacQuown, Jr. The Lexington Limestone (Middle Ordovician) of Central Kentucky. [Washington, D.C.]: United States Department of the Interior, Geological Survey, 1965.

MLA (9th ed.) Citation

Black, Douglas F. B., et al. The Lexington Limestone (Middle Ordovician) of Central Kentucky. United States Department of the Interior, Geological Survey, 1965.