TY - MAP ID - 138414511 TI - Geologic map of the La Ventana-Chacra Mesa coal field in the southern part of the San Juan Basin, New Mexico PY - 1936 PB - Washington (D.C.) U.S. Geological Survey DB - UniCat UR - https://www.unicat.be/uniCat?func=search&query=sysid:138414511 AB - ER -