APA (7th ed.) Citation

LEON, H. S. d. (1987). Textbook on the New Philippine Constitution. Rex Book.

Chicago Style (17th ed.) Citation

LEON, Hector S. de. Textbook on the New Philippine Constitution. Quezon: Rex Book, 1987.

MLA (9th ed.) Citation

LEON, Hector S. de. Textbook on the New Philippine Constitution. Rex Book, 1987.

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