TY - RPRT TI - Paleogeography and the Late Cretaceous of the Western Interior of middle North America; coal distribution and sediment accumulation AU - Laura N. Robinson Roberts AU - Mark A. Kirschbaum PY - 1995 DO - 10.3133/pp1561 UR - https://pubs.usgs.gov/publication/pp1561 ID - pp1561 ER -