Peter C. Canada. Department of Mines and Technical Surveys Badgley books & textbook
Geological Survey of Canada Paper 52 - 11. Notes on the subsurface stratigraphy and oil and gas geology of the Lower Cretaceous Series in Central Alberta (Report and seven figures)
Peter C. Canada. Department of Mines and Technical Surveys Badgley
Ottawa : Department of Mines and Technical Surveys /1952T Paperback
