Cita APA (7a ed.)

Ellis, R., & Gulick, D. (1984). College algebra and trigonometry (2nd ed.). Harcourt Brace Jovanovich, Pub.

Cita Chicago Style (17a ed.)

Ellis, Robert, y Denny Gulick. College Algebra and Trigonometry. 2nd ed. San Diego [etc.]: Harcourt Brace Jovanovich, Pub, 1984.

Cita MLA (9a ed.)

Ellis, Robert, y Denny Gulick. College Algebra and Trigonometry. 2nd ed. Harcourt Brace Jovanovich, Pub, 1984.