Cita APA (7a ed.)

De Guzman, D. (1997). Guide for effective study. Manila Bulletin.

Cita Chicago Style (17a ed.)

De Guzman, Desiderio. "Guide for Effective Study." Manila Bulletin 1997.

Cita MLA (9a ed.)

De Guzman, Desiderio. "Guide for Effective Study." Manila Bulletin, 1997.