Studies of aerial spraying against the spruce budworm in New Brunswick. IV. Techniques for aerial surveys of defoliation and damage 1954-55. 1956. Webb, F.E.; Williams, L.E. Ottawa. Interim Report 1955-4. 15 p.
Catalog ID: 8226
Issued by: Atlantic Forestry Centre
Availability: Not available through the CFS (click for more information).