Cita APA (7th ed.)

Charles, R. I., & Ramirez, A. (2009). California pre-algebra (teacher's ed.). Pearson/Prentice Hall.

Cita Chicago (17th ed.)

Charles, Randall I., i Alma Ramirez. California Pre-algebra. teacher's ed. Boston, Massachusetts: Pearson/Prentice Hall, 2009.

Cita MLA (9th ed.)

Charles, Randall I., i Alma Ramirez. California Pre-algebra. teacher's ed. Pearson/Prentice Hall, 2009.