- Greig, B. J. W., and J. N. Biggs. 1983. Paper 3. Control of Dutch elm disease in Britain. Pages 10-16 in D. A. Burdekin (ed.), Research on Dutch elm disease in Europe. Great Britain Forestry Commission, Bulletin 60. 113 p.
- Hall, K. C., W. D. Biggs, and L. S. Macleod. 1975. Forest insect and disease surveys in the Northeastern Region of Ontario, 1974. Canada Department of the Environment, Canadian Forestry Service, Great Lakes Forest Research Centre, Information Report O-X-223. 19 p.
- Weir, H. J., and W. D. Biggs. 1974. Forest insect and disease conditions in the southwest survey region, 1973. Canada Department of Fisheries and Forestry, Forestry Service, Great Lakes Forestry Research Centre, Sault Ste. Marie, Ontario, Information Report O-X-194. 26 p.