Cita APA (7a ed.)

Leff, L. S. (2010). Barron's E-Z precalculus. Barron's Educational Series.

Cita Chicago Style (17a ed.)

Leff, Lawrence S. Barron's E-Z Precalculus. Hauppauge, NY: Barron's Educational Series, 2010.

Cita MLA (8a ed.)

Leff, Lawrence S. Barron's E-Z Precalculus. Barron's Educational Series, 2010.

Precaución: Estas citas no son 100% exactas.