APA (7th ed.) Citation

Perry, D. J., & Silverthorn, J. E. (1977). College vocabulary building (6. ed.). South-Western.

Chicago Style (17th ed.) Citation

Perry, Devern J., and J. E. Silverthorn. College Vocabulary Building. 6. ed. Cincinnati, Ohio: South-Western, 1977.

MLA (9th ed.) Citation

Perry, Devern J., and J. E. Silverthorn. College Vocabulary Building. 6. ed. South-Western, 1977.