APA (7th ed.) Citation

Constantino, R., & Constantino, L. R. (1975). The Philippines: A past revisited (Pre-Spanish-1941)a. The Author.

Chicago Style (17th ed.) Citation

Constantino, Renato, and Letizia R. Constantino. The Philippines: A Past Revisited (Pre-Spanish-1941)a. Quezon City: The Author, 1975.

MLA (9th ed.) Citation

Constantino, Renato, and Letizia R. Constantino. The Philippines: A Past Revisited (Pre-Spanish-1941)a. The Author, 1975.

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