Cita APA (7th ed.)

HACKERT, A. F., & SELLER, G. R. (1988). College algebra and trigonometry. Harcourt Brace Jovanovich.

Cita Chicago (17th ed.)

HACKERT, Adelbert F., i Gene R. SELLER. College Algebra and Trigonometry. San Diego: Harcourt Brace Jovanovich, 1988.

Cita MLA (9th ed.)

HACKERT, Adelbert F., i Gene R. SELLER. College Algebra and Trigonometry. Harcourt Brace Jovanovich, 1988.