APA (7th ed.) Citation

Gough, B. M. (1997). First across the continent: Sir Alexander Mackenzie. University of Oklahoma Press.

Chicago Style (17th ed.) Citation

Gough, Barry M. First Across the Continent: Sir Alexander Mackenzie. Norman: University of Oklahoma Press, 1997.

MLA (8th ed.) Citation

Gough, Barry M. First Across the Continent: Sir Alexander Mackenzie. University of Oklahoma Press, 1997.