TY - MAP ID - 134666886 TI - Little Belt Mountains folio, Montana : historical geology sheet AU - Weed, Walter Harvey AU - Pirsson, Louis V. PY - 1899 PB - Washington, D.C. U.S Geological Survey DB - UniCat UR - https://www.unicat.be/uniCat?func=search&query=sysid:134666886 AB - ER -