The double-cross systemJ. C. Masterman, John C. Masterman, Norman Holmes Pearson · First published 1972Open the Tome
Afro-American anthropologyNorman E. Whitten, Whitten, Norman E.; Szwed, John F. (Editors), Norman E., Jr. Whitten, John F. Szwed, S. Mintz · First published 1970Open the Tome
30 Days to a More Powerful VocabularyWilfred John Funk, Norman Lewis · First published 1942Open the Tome