Cita APA (7a ed.)

Ramirez, A. L., & Campos, P. O. (1962). An updated U.S. ECFMG, reviewer with recent questions and answers. The Philippine Medical Pub.

Cita Chicago Style (17a ed.)

Ramirez, Alfredo L., y Pablo O. Campos. An Updated U.S. ECFMG, Reviewer with Recent Questions and Answers. Manila: The Philippine Medical Pub, 1962.

Cita MLA (9a ed.)

Ramirez, Alfredo L., y Pablo O. Campos. An Updated U.S. ECFMG, Reviewer with Recent Questions and Answers. The Philippine Medical Pub, 1962.