Peralta, J. T. (1982). I'wak: Alternative strategies for subsistence : a micro-economic study : the Iwak of Boyasyas, Nueva Vizcaya, Philippines. National Museum.
Citazione stile Chigago Style (17a edizione)Peralta, Jesus T. I'wak: Alternative Strategies for Subsistence : A Micro-economic Study : The Iwak of Boyasyas, Nueva Vizcaya, Philippines. Manila: National Museum, 1982.
Citatione MLA (9a ed.)Peralta, Jesus T. I'wak: Alternative Strategies for Subsistence : A Micro-economic Study : The Iwak of Boyasyas, Nueva Vizcaya, Philippines. National Museum, 1982.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.