- May 1914
- Buchanan, W. D., and C. May. 1942. Technique for artificially feeding Scolytus multistriatus and Saperda tridentata spores of Ceratostomella ulmi and other substances . Phytopathology 32:95-97.
- May, B. M. 1967. Immature stages of Curculionidae: I, Some genera in the tribe Araucariini (Cossoninae) . New Zealand Journal of Science 10:644-660.
- May, C. 1930. Dutch elm disease in Ohio . Science 72:142-143.
- May, C. 1934. Outbreaks of the Dutch elm disease in the United States. United States Department of Agriculture, Circular 322. 19 p.
- May, C. 1938. The Dutch elm disease. Massachusetts Forest and Park Association, Leaflet 23. 4 p.
- May, C. 1953. The Dutch elm disease problem . National Shade Tree Conference, Proceedings 29:60-69.
- May, C., and C. W. Collins. 1938. The Dutch elm disease in the United States and its insect vectors . Western Shade Tree Conference, Proceedings 5:49-54.
- May, C., and G. F. Gravatt. 1931. The Dutch elm disease. United States Department of Agriculture, Circular 170. 10 p.
- Middleton, W., W. D. Buchanan, C. May, and J. M. Walter. 1935. Ceratostomella (Graphium) ulmi, the cause of the Dutch elm disease, transmitted by Scolytus multistriates . Journal of Economic Entomology 28:138.
- Rex, E. G., and C. May. 1943. Natural spread of Dutch elm disease in a small area in New Jersey . Arborist's News 8:89-90.
- Walter, J. M., C. May, and C. W. Collins. 1943. Dutch elm disease and its control. United States Department of Agriculture, Circular 677. 12 p.
- May, C., and W. L. Baker. 1952. Insects and spread of forest-tree diseases. Pages 677-682 in A. Stefferud, Insects. United States Department of Agriculture, Washington, D.C. Yearbook 1952. xviii + 780 p.
- May, B. 1993. Larvae of Curculionoidea (Insecta: Coleoptera): a systematic overview. Fauna of New Zealand, Number 28. Manaaki Whenua Press: Lincoln, New Zealand. 226 p.
- May, B. 1997. Larvae of two weevil genera (Coleoptera: Curculionidae) associated with Crossotarsus armipennis Lea (Platypodidae) from New South Wales . New Zealand Entomologist 20:7-13.