%0 Book %B New York State Museum Bulletin %D 1962 %T Late Cayugan (Upper Silurian) and Helderbergian (Lower Devonian) Stratigraphy in New York %A L. V. Rickard %K geology %B New York State Museum Bulletin %I The University of the State of New York %C Albany, New York %G eng %U http://purl.nysed.gov/nysl/4745866