Canadian Forest Service Publications
The forestry tri-camera method of air photography. 1948. Seely, H.E. Department of Mines and Resources, Mines, Forest and Scientific Services Branch, Dominion Forest Service, Ottawa, Ontario. Forest Air Survey Leaflet No. 3. 13 p.
Available from: Northern Forestry Centre
Catalog ID: 35671
CFS Availability: PDF (download)
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