Quezon, M. L. The Philippine islands: What they are and what they would be.
Cita Chicago Style (17a ed.)Quezon, Manuel L. The Philippine Islands: What They Are and What They Would Be.
Cita MLA (9a ed.)Quezon, Manuel L. The Philippine Islands: What They Are and What They Would Be.
Precaución: Estas citas no son 100% exactas.