Vol. 273, Issue 7, 1973September 01, 1973 EDT
Middle Ordovician Normanskill Formation, Eastern New York, Age, Stratigraphic, and Structural Position
Middle Ordovician Normanskill Formation, Eastern New York, Age, Stratigraphic, and Structural Position
Lawrence V. Rickard, Donald W. Fisher,
Rickard, L. V., & Fisher, D. W. (1973). Middle Ordovician Normanskill Formation, eastern New York, age, stratigraphic, and structural position. American Journal of Science, 273(7), 580–590. https://doi.org/10.2475/ajs.273.7.580