TY - GEN A2 - Fullerton, David S. A2 - Richmond, Gerald Martin, 1914- A2 - Pennsylvania. Bureau of Topographic and Geologic Survey AU - Geological Survey (U.S.) CN - I 19.91:I-1420 (NK-18) CY - Reston, VA CY - Denver, CO L2 - http://purl.access.gpo.gov/GPO/LPS59847 LA - English PB - [U.S. Geological Survey, For sale by Map Distribution] PP - Reston, VA PP - Denver, CO PY - 1992 TI - Quaternary geologic map of the Hudson River 4° x 6° quadrangle, United States and Canada ER -