Cita APA (7a ed.)

Weiner Green, S., & Wolf, I. K. (2013). Barron's GRE (20th ed.). Barron's.

Cita Chicago Style (17a ed.)

Weiner Green, Sharon, y Ira K. Wolf. Barron's GRE. 20th ed. Hauppauge, New York: Barron's, 2013.

Cita MLA (9a ed.)

Weiner Green, Sharon, y Ira K. Wolf. Barron's GRE. 20th ed. Barron's, 2013.