- Sippell, W. L., A. H. Rose, and H. L. Gross. 1970. Ontario Region. Pages 52-71. Canada Department of Fisheries and Forestry, Canadian Forestry Service, Forest Insect and Disease Survey, Annual Report 1969. 125 p.
- Sippell, W. L., A. H. Rose, and H. L. Gross. 1972. Ontario Region. Pages 54-72. Canada Department of the Environment, Canadian Forestry Service, Forest Insect and Disease Survey, Annual Report 1971. 106 p.
- Sippell, W. L., A. H. Rose, and H. L. Gross. 1974. Ontario Region. Pages 50-69. Canada Department of Environment, Canadian Forestry Service, Forest Insect and Disease Survey, Annual Report 1973. 101 p.
- Sippell, W. L., A. H. Rose, and H. L. Gross. 1975. Ontario Region: Important forest insects. Pages 57-74. Canada Department of Environment, Forestry Service, Forest Insect and Disease Survey, Annual Report 1974. 109 p.
- Sippell, W. L., A. H. Rose, and H. L. Gross. 1978. Ontario Region. Pages 55-69. Canada Department of the Environment, Canadian Forestry Service, Forest Insect and Disease Survey, Annual Report 1976. 108 p.
- Watson, W. Y., and W. L. Sippell. 1961. Scolytid vectors of the Dutch elm disease in Ontario . Canadian Entomologist 93:403-405.