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- Alberta. Environment Conservation Authority 28
- Parks Canada 27
- Alberta. Laws, statutes, etc 19
- Whyte, Jon 16
- Bonington, Christian 12
- Ford, Theresa M., ed 12
- Parks Canada. Western Region 12
- Putnam, William Lowell 12
- Russell, Andy 12
- Metropolitan Museum of Art (New York) 11
- Bain, Donald M 10
- Birney, Earle 10