TY - RPRT TI - Petrology, diagenesis, and sedimentology of oil reservoirs in Upper Cretaceous Shannon Sandstone Beds, Powder River basin, Wyoming AU - Paula L. Hansley AU - C. Gene Whitney PY - 1990 DO - 10.3133/b1917c UR - https://pubs.usgs.gov/publication/b1917C ID - b1917C ER -