Castillo, G. T. (1979). Beyond Manila: Philippine rural problems in perspective. International Development Research Center.
Lua i Stíl Chicago (17ú heag.)Castillo, Gelia Tagumpay. Beyond Manila: Philippine Rural Problems in Perspective. Ottawa, Ontario: International Development Research Center, 1979.
Lua MLA (9ú heag.)Castillo, Gelia Tagumpay. Beyond Manila: Philippine Rural Problems in Perspective. International Development Research Center, 1979.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.