APA
National Research Council Canada, . (1978). Permafrost. International Conference 3. Edmonton, Alberta, Canada. 1978. Proceedings. Vol 1 + Abstracts. Ottawa: National Research Council Canada.
Chicago
National Research Council Canada, . 1978. Permafrost. International Conference 3. Edmonton, Alberta, Canada. 1978. Proceedings. Vol 1 + Abstracts. Ottawa: National Research Council Canada.
Harvard
National Research Council Canada, . (1978). Permafrost. International Conference 3. Edmonton, Alberta, Canada. 1978. Proceedings. Vol 1 + Abstracts. Ottawa: National Research Council Canada.
MLA
National Research Council Canada, . Permafrost. International Conference 3. Edmonton, Alberta, Canada. 1978. Proceedings. Vol 1 + Abstracts. Ottawa: National Research Council Canada. 1978.