Directory of Sources for Air and Space History: Primary Historical Collections in U.S. RepositoriesNational Air and Space Museum, Smithsonian Institution312
Gull, Cloyd Dake, Smith, Charles Louis, Wooldridge, E. T., and Collins, Martin J., editors. 1989. Directory of Sources for Air and Space History: Primary Historical Collections in U.S. Repositories. Washington, D.C.: National Air and Space Museum, Smithsonian Institution.