APA (7th ed.) Citation

Silverthorn, J. E., & Perry, D. J. (1970). Word division manual: The fifteen thousand most used words in business communication (2d ed.). South-western Pub. Co..

Chicago Style (17th ed.) Citation

Silverthorn, J. E., and Devern J. Perry. Word Division Manual: The Fifteen Thousand Most Used Words in Business Communication. 2d ed. Cincinnati: South-western Pub. Co., 1970.

MLA (9th ed.) Citation

Silverthorn, J. E., and Devern J. Perry. Word Division Manual: The Fifteen Thousand Most Used Words in Business Communication. 2d ed. South-western Pub. Co., 1970.