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- Gara, R. I., J. P. Vite, and H. H. Cramer. 1965. Manipulation of Dendroctonus frontalis by use of a population aggregating pheromone . Boyce Thompson Institute for Plant Research, Contributions 23:55-66.
- Smith, R. H., J. P. Cramer, and E. J. Carpender. 1981. New record of introduced hosts for the mountain pine beetle in California. United States Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station, Research Note PSW-354. 3 p.