- Hard, J. S. 1964. The identification of primary red pine cone insects. United States Department of Agriculture Forest Service, Lake States Forest Experiment Station, Research Paper LS-12. 10 p.
- Hard, J. S. 1967. Identification of destructive Alaska forest insects. United States Department of Agriculture, Forest Service, Institute of Northern Forestry, Pacific Northwest Forest and Range Experiment Station, Juneau, Alaska. 19 p.
- Hard, J. S. 1974. The forest ecosystem of southeast Alaska. 2, Forest insects. United States Department of Agriculture, Forest Service, Pacific Northwest Forest Experiment Station, General Technical Report PNW-13. 32 p.
- Hard, J. S. 1982. Stand and tree variables associated with spruce beetle attacks in a Kenai Peninsula infestation: implications for management. Pages 72—80 in Proceedings, 2nd Alaskan integrated pest management conference, 21-22 January 1982, University of Alaska, Cooperative Extension Service.
- Hard, J. S., R. A. Werner, and E. H. Holsten. 1983. Susceptibility of white spruce (Picea glauca) to attack by spruce beetles (Dendroctonus rufipennis) during the early years of an outbreak in Alaska . Canadian Journal of Forest Research 13:678-684.
- Hard, J. S. 1985. Spruce beetles attack slowly growing spruce . Forest Science 31:839-850.
- Hard, J. S. 1987. Vulnerability of white spruce with slowly expanding lower boles on dry cold sites to early seasonal attack by spruce beetles in south-central Alaska . Canadian Journal of Forest Research 17:428-435.
- Hard, J. S. 1989. Sequence of trees attacked by spruce beetles in a mature even-aged spruce stand in south-central Alaska . Northwest Science 63:5-12.
- Hard, J. S., and E. H. Holsten. 1985. Managing white and Lutz spruce stands in south-central Alaska for increased resistance to spruce beetle. United States Department of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station, Portland, Oregon, General Technical Report PNW-188. ii + 21 p.
- Werner, R. A., J. S. Hard, and E. H. Holsten. 1988. The development of management strategies to reduce the impact of the spruce beetle in south-central Alaska . Northwest Environmental Journal 4:319-358.
- Hard, J. 1992. Success of spruce beetle attacks in pruned and unpruned boles of Lutz spruce in south-central Alaska . Forest Ecology and Management 47:51-70.
- Hard, J., and E. Holsten. 1991. Spruce beetle attacks and surviving beetle brood in limbed and bucked spruce in south-central Alaska . Northwest Science 65:205-211.
- Reynolds, K., and J. Hard. 1991. Risk and hazard of spruce beetle attack in unmanaged stands on the Kenai Peninsula, Alaska, under epidemic conditions . Forest Ecology and Management 43:137-151.
- Shea, P., E. Holsten, and J. Hard. 1991. Bole implantation of systemic insecticides does not protect trees from spruce beetle attack . Western Journal of Applied Forestry 6:4-7.