APA (7th ed.) Citation

Williams, J., & Dickerson, Y. (2001). The invisible cryptologists: African Americans, WWII to 1956. Center for Cryptologic History, National Security Agency.

Chicago Style (17th ed.) Citation

Williams, Jeannette, and Yolande Dickerson. The Invisible Cryptologists: African Americans, WWII to 1956. [Fort George G. Meade, Md.]: Center for Cryptologic History, National Security Agency, 2001.

MLA (9th ed.) Citation

Williams, Jeannette, and Yolande Dickerson. The Invisible Cryptologists: African Americans, WWII to 1956. Center for Cryptologic History, National Security Agency, 2001.