APA (7th ed.) Citation

Abrams, S., Rein, D. P., & Byrd, D. R. H. (1993). Spectrum workbook one: A communicative course in english. Prentice Hall Regents.

Chicago Style (17th ed.) Citation

Abrams, Sharon, David P. Rein, and Donald R. H. Byrd. Spectrum Workbook One: A Communicative Course in English. Englewood Cliffs, NJ: Prentice Hall Regents, 1993.

MLA (8th ed.) Citation

Abrams, Sharon, et al. Spectrum Workbook One: A Communicative Course in English. Prentice Hall Regents, 1993.