MILLIKIN, DONALD D.
Elementary cryptography and cryptanalysis. 2d ed.
MILLIKIN, DONALD D. Elementary cryptography and cryptanalysis. 2d ed. © 26Mar43; AA425892. Ruth K. Millikin (Mrs. D. D. Millikin) (W); 11Jun70; R486073.
Ruth K. Millikin|Mrs. D. D. Millikin|||W