APA (7th ed.) Citation

Pena, A. R., & Celerio, L. Iyo kailan pa man: Kundiman. Shunjusha Edition.

Chicago Style (17th ed.) Citation

Pena, Angel R., and Levi Celerio. Iyo Kailan Pa Man: Kundiman. Tokyo: Shunjusha Edition.

MLA (9th ed.) Citation

Pena, Angel R., and Levi Celerio. Iyo Kailan Pa Man: Kundiman. Shunjusha Edition.