APA (7th ed.) Citation

De Guzman, C. D. Bayan ko!: (kundiman). Perlas Music.

Chicago Style (17th ed.) Citation

De Guzman, Constancio D. Bayan Ko!: (kundiman). Manila: Perlas Music.

MLA (9th ed.) Citation

De Guzman, Constancio D. Bayan Ko!: (kundiman). Perlas Music.

Warning: These citations may not always be 100% accurate.