Dean C. Worcester. (1913). Slavery and Peonage In The Philippine Islands. Bureau of Printing.
Dyfyniad Arddull ChicagoDean C. Worcester. Slavery and Peonage In The Philippine Islands. Manila: Bureau of Printing, 1913.
Dyfyniad MLADean C. Worcester. Slavery and Peonage In The Philippine Islands. Bureau of Printing, 1913.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.