Hellson, J. C. (1974). Ethnobotany of the Blackfoot Indians. National Museums of Canada.
Chicago Style (17th ed.) CitationHellson, John C. Ethnobotany of the Blackfoot Indians. Ottawa: National Museums of Canada, 1974.
MLA (9th ed.) CitationHellson, John C. Ethnobotany of the Blackfoot Indians. National Museums of Canada, 1974.