Cook, William J.. Bear Incident and  Management Action Report. Washington, D.C.: National Park Service, 1982.

Cook, William J.. Biochemical, Hematological, and Pathological Observations of Black Bears in the Smoky Mountains. Knoxville, TN: The University of Tennessee, 1982.

Cook, William J., John M. Collins, and Ashel E. Ammons. Chemical Immobilization of Black Bears in Great Smoky Mountains National Park In 5th Eastern Workshop on Black Bear Management and Research. Wrightsville Beach, NC: The North Carolina Wildlife Resources Commission, 1980.

Cook, William J., and Michael R. Pelton. Selected Infectious and                        Parasitic Diseases of Black Bears in the Great Smoky Mountains National                        Park In 4th Annual Black Bear                        Workshop. Vol. 4. Greenville, ME, 1978.