Cita APA

Silverthorn, J. E., & Perry, D. J. (1970). Word division manual: The fifteen thousand most used words in business communication (2a. ed.). Cincinnati: South-Western Publishing.

Citación estilo Chicago

Silverthorn, J. E., y Devern J. Perry. Word Division Manual: The Fifteen Thousand Most Used Words in Business Communication. 2a. ed. Cincinnati: South-Western Publishing, 1970.

Cita MLA

Silverthorn, J. E., y Devern J. Perry. Word Division Manual: The Fifteen Thousand Most Used Words in Business Communication. 2a. ed. Cincinnati: South-Western Publishing, 1970.