Cita APA

Silverthorn, J. E., Oberly, J. W., & Perry, D. J. (1971). College vocabulary building (5ta. ed.). Cincinnati: South-Western.

Citación estilo Chicago

Silverthorn, J. E., John W. Oberly, y Devern J. Perry. College Vocabulary Building. 5ta. ed. Cincinnati: South-Western, 1971.

Cita MLA

Silverthorn, J. E., John W. Oberly, y Devern J. Perry. College Vocabulary Building. 5ta. ed. Cincinnati: South-Western, 1971.