Parker, Warren T., and Gary V. Henry. Great Smoky Mountains National Park: A Red Wolf Reintroduction Proposal In Environmental Assessment. Atlanta, Georgia: United States Department of the Interior Fish and Wildlife Service, Southeast Region, 1991.

Parker, Warren T.. A Proposal to Reintroduce the Red Wolf into the Great Smoky Mountains National Park In A Red Wolf Management Series. Asheville, North Carolina: U.S. Fish and Wildlife Service, 1990.

Parker, Warren T.. A Proposal to Reintroduce the Red Wolf to the Great Smoky Mountains National Park In First Annual Southern Appalachian Man and the Biosphere Conference. Gatlinburg, TN: Tennessee Valley Authority, 1990.

Parker, Warren T.. A Historic Perspective of Canis Rufus and its Recovery Potential In Red Wolf Management Series. Asheville, North Carolina: U.S. Fish and Wildlife Service, 1988.