Campbell, J. D. (1965). Coal resources in southeastern Alberta and their setting (Reprint.). Alberta Society of Petroleum Geologists.
Chicago-Zitierstil (17. Ausg.)Campbell, J. D. Coal Resources in Southeastern Alberta and Their Setting. Reprint. [Calgary, Alberta]: Alberta Society of Petroleum Geologists, 1965.
MLA-Zitierstil (9. Ausg.)Campbell, J. D. Coal Resources in Southeastern Alberta and Their Setting. Reprint. Alberta Society of Petroleum Geologists, 1965.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.