Cita APA (7th ed.)

Panopio, R. G. (1999). Workbook for PSI for college algebra. Learning Resource Center, University of the Philippines.

Cita Chicago (17th ed.)

Panopio, Rolando G. Workbook for PSI for College Algebra. Diliman, Quezon City: Learning Resource Center, University of the Philippines, 1999.

Cita MLA (9th ed.)

Panopio, Rolando G. Workbook for PSI for College Algebra. Learning Resource Center, University of the Philippines, 1999.