TY - MAP ID - 135976052 TI - New York City folio, New York-New Jersey : Harlem quadrangle historical geology sheet AU - Darton, N.H. AU - Merrill, Frederick J. H. PY - 1902 PB - Washington, D.C. U.S Geological Survey DB - UniCat UR - https://www.unicat.be/uniCat?func=search&query=sysid:135976052 AB - ER -