APA (7th ed.) Citation

Philippine Historical Association & New Day Publishers. (1999). Philippine Presidents: 100 years. New Day Pub.

Chicago Style (17th ed.) Citation

Philippine Historical Association and New Day Publishers. Philippine Presidents: 100 Years. Quezon City: New Day Pub, 1999.

MLA (9th ed.) Citation

Philippine Historical Association and New Day Publishers. Philippine Presidents: 100 Years. New Day Pub, 1999.

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