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- Alberta. Environment Conservation Authority 26
- Burles, Gordon 24
- Parks Canada 23
- Harmon, Byron 14
- Alberta. Laws, statutes, etc 13
- Sandford, Robert W 12
- Canada. National and Historic Parks Branch 10
- Ford, Theresa M., ed 10
- Martel, Lynn 10
- Parks Canada. Western Region 9
- Russell, Andy
- Canada. Laws, statutes, etc 8