Zen, E. (1964). Taconic stratigraphic names: Definitions and synonymies. United States Department of the Interior, Geological Survey.
Chicago Style (17th ed.) CitationZen, E-an. Taconic Stratigraphic Names: Definitions and Synonymies. [Washington, D.C.]: United States Department of the Interior, Geological Survey, 1964.
MLA (9th ed.) CitationZen, E-an. Taconic Stratigraphic Names: Definitions and Synonymies. United States Department of the Interior, Geological Survey, 1964.
Warning: These citations may not always be 100% accurate.