(Author), (Interviewer), & (Publisher). (1939). Athabasca River - 21.
Chicago Style (17th ed.) Citation(Author), (Interviewer), and (Publisher). Athabasca River - 21. 1939.
MLA (9th ed.) Citation(Author), et al. Athabasca River - 21. 1939.
Warning: These citations may not always be 100% accurate.