Cita APA (7a ed.)

Leff, L. S. (2009). Barron's E-Z geometry ([4th ed.].). Barron's Educational Series.

Cita Chicago Style (17a ed.)

Leff, Lawrence S. Barron's E-Z Geometry. [4th ed.]. Hauppauge, N.Y.: Barron's Educational Series, 2009.

Cita MLA (8a ed.)

Leff, Lawrence S. Barron's E-Z Geometry. [4th ed.]. Barron's Educational Series, 2009.

Precaución: Estas citas no son 100% exactas.