- Manning, G. H. 1982. Impact of the mountain pine beetle on the economy of British Columbia. Pages 22-23 in D. M. Shrimpton (ed.), Proceedings of the joint Canada-United States workshop on mountain pine beetle related problems in western North America. Canada Department of the Environment, Canadian Forestry Service, Pacific Forest Research Centre, Victoria, British Columbia, Report BC-X-230. 187 p.
- Manning, G. H., L. Safranyik, G. H. V. Sickle, R. B. Smith, W. A. White, and E. Hetherington. 1982. A review of mountain pine beetle problems in Canada. Canada Department of the Environment, Canada Forestry Service, Pacific Forest Research Centre, Victoria, British Columbia. 27 p.
- Safranyik, L., G. A. Van Sickle, and G. M. Manning. 1981. Position paper on mountain pine beetle problems with special reference to the Rocky Mountain Parks Region. Canada Department of the Environment, Canadian Forestry Service, Pacific Forest Research Centre, Victoria, British Columbia. 27 p.