APA (7th ed.) Citation

National Historical Institute, Manila. (1992). Winning essays, 1988-1991. The Institute.

Chicago Style (17th ed.) Citation

National Historical Institute, Manila. Winning Essays, 1988-1991. Manila: The Institute, 1992.

MLA (9th ed.) Citation

National Historical Institute, Manila. Winning Essays, 1988-1991. The Institute, 1992.

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