APA (7th ed.) Citation

Douglas, R. J. W. (1958). Chungo Creek map-area Alberta: Map, scale 1:63,360. Geological Survey of Canada.

Chicago Style (17th ed.) Citation

Douglas, Robert J. W. Chungo Creek Map-area Alberta: Map, Scale 1:63,360. Ottawa: Geological Survey of Canada, 1958.

MLA (9th ed.) Citation

Douglas, Robert J. W. Chungo Creek Map-area Alberta: Map, Scale 1:63,360. Geological Survey of Canada, 1958.