APA (7th ed.) Citation

Salas, S. L., & Salas, C. G. j. a. (1975). Precalculus: A short course. Xerox College.

Chicago Style (17th ed.) Citation

Salas, Saturnino L., and Charles G. joint auth Salas. Precalculus: A Short Course. Lexington, Mass: Xerox College, 1975.

MLA (9th ed.) Citation

Salas, Saturnino L., and Charles G. joint auth Salas. Precalculus: A Short Course. Xerox College, 1975.