Philippines. Office of the Governor. (1970). Annual report: Kalinga-Apayao province.
Cita Chicago Style (17a ed.)Philippines. Office of the Governor. Annual Report: Kalinga-Apayao Province. 1970.
Cita MLA (9a ed.)Philippines. Office of the Governor. Annual Report: Kalinga-Apayao Province. 1970.
Precaución: Estas citas no son 100% exactas.