Cita APA (7th ed.)

LARSON, R. E., & HSOTETLER, R. P. (1985). Precalculus. D>C Heath an d co.

Cita Chicago (17th ed.)

LARSON, Roland E., i Robert P. HSOTETLER. Precalculus. Toronto: D>C Heath an d co, 1985.

Cita MLA (9th ed.)

LARSON, Roland E., i Robert P. HSOTETLER. Precalculus. D>C Heath an d co, 1985.