TY - RPRT TI - Petroleum system modeling of the western Canada sedimentary basin - isopach grid files AU - Debra K. Higley AU - Mitchell E. Henry AU - Laura N.R. Roberts PY - 2005 DO - 10.3133/ofr20051421 UR - https://pubs.usgs.gov/publication/ofr20051421 ID - ofr20051421 ER -