TY - RPRT TI - Quaternary geologic map of the Hudson River 4° x 6° quadrangle, United States and Canada AU - William D. Sevon AU - Ernest H. Muller AU - Sheldon Judson AU - Robert F. Black AU - Phillip W. Wagner AU - Joseph H. Hartshorn AU - William F. Chapman AU - William D. Cowan PY - 1992 DO - 10.3133/i1420(nk18) UR - https://pubs.usgs.gov/publication/i1420(NK18) ID - i1420(NK18) ER -