APA (7th ed.) Citation

De Leon, H. S. (1989). Constitution for high school. Rex Book Store.

Chicago Style (17th ed.) Citation

De Leon, Hector S. Constitution for High School. Manila: Rex Book Store, 1989.

MLA (9th ed.) Citation

De Leon, Hector S. Constitution for High School. Rex Book Store, 1989.

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