APA (7th ed.) Citation

Kalaw, P. V. (1947). A brief history of the Filipino flag. Bureau of Print.

Chicago Style (17th ed.) Citation

Kalaw, Pura Villanueva. A Brief History of the Filipino Flag. Manila: Bureau of Print, 1947.

MLA (9th ed.) Citation

Kalaw, Pura Villanueva. A Brief History of the Filipino Flag. Bureau of Print, 1947.