APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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

Kontuz: berrikusi erreferentzia hauek erabili aurretik.