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| Directed by James Beveridge and Margaret Perry | 
| Canada, 1944 (documentary, 15 minutes, black and white, English) | 
| Also known as "Vers le nord par avion" | 
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| Image: © National Film Board of Canada | 
| Film Description: "The construction of chains of airfields in northwestern Canada was a difficult job of strategic importance in the war effort." -- National Film Board of Canada (source) | 
| Film Credits (partial): | |
| Produced by: | James Beveridge, Margaret Perry | 
| Narrator: | King Whyte | 
| Cinematography: | Donald Fraser, Joe Gibson | 
| Music: | Maurice Blackburn | 
| Production Company: | National Film Board of Canada / Office national du film du Canada | 
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