The Permian and Triassic systems and their mutual boundary
By: editors A. Logan [and] L.V. Hills.
Contributors: Logan, A.; Hills, L V.
Publisher: Canadian Society of Petroleum Geologists
Published: 1973
Place of publication: Calgary
Language: eng
Notes: 'The International Permian-Triassic Conference, sponsored by the University of Calgary and the Geological Survey of Canada was held at the University of Calgary, Alberta, Canada, from August 23rd to 26th, 1971.' - editor's preface.