Cita APA (7a ed.)

Worcester, D. C. (1913). Slavery and Peonage in the Philippine Islands. Manila.

Cita Chicago Style (17a ed.)

Worcester, Dean C. Slavery and Peonage in the Philippine Islands. Manila, 1913.

Cita MLA (8a ed.)

Worcester, Dean C. Slavery and Peonage in the Philippine Islands. Manila, 1913.