TY - RPRT TI - Potentiometric-surface map of the Wyodak-Anderson coal bed, Powder River structural basin, Wyoming, 1973-84 AU - Pamela B. Daddow PY - 1986 DO - 10.3133/wri854305 UR - https://pubs.usgs.gov/publication/wri854305 ID - wri854305 ER -