APA (7th ed.) Citation

Felix, A. (1989). Mang Pedro de Leon: Herbolario. Historical Conservation Society.

Chicago Style (17th ed.) Citation

Felix, Alfonso. Mang Pedro De Leon: Herbolario. Manila: Historical Conservation Society, 1989.

MLA (9th ed.) Citation

Felix, Alfonso. Mang Pedro De Leon: Herbolario. Historical Conservation Society, 1989.