Cita APA (7a ed.)

Barnett, R. A. (1985). Functions and graphs: A precalculus course. McGraw-Hill.

Cita Chicago Style (17a ed.)

Barnett, Raymond A. Functions and Graphs: A Precalculus Course. New York [etc.]: McGraw-Hill, 1985.

Cita MLA (9a ed.)

Barnett, Raymond A. Functions and Graphs: A Precalculus Course. McGraw-Hill, 1985.