APA (7th ed.) Citation

Warshawsky, D., Byrd, D. R. H., Vaughn, M., & Goldblatt, D. (1983). Spectrum 3: A communicative course in English. Regents publication.

Chicago Style (17th ed.) Citation

Warshawsky, Diane, Donald R. H. Byrd, Mary Vaughn, and Deborah Goldblatt. Spectrum 3: A Communicative Course in English. New York, New York: Regents publication, 1983.

MLA (9th ed.) Citation

Warshawsky, Diane, et al. Spectrum 3: A Communicative Course in English. Regents publication, 1983.