Philippines. Province of Ifugao. Office of the Provincial Governor & Planning and Project Development Office. (1999). Provincial development plan 1999-2004: Province of Ifugao. Office of the Provincial Governor.
Citazione stile Chigago Style (17a edizione)Philippines. Province of Ifugao. Office of the Provincial Governor e Planning and Project Development Office. Provincial Development Plan 1999-2004: Province of Ifugao. [Nueva Vizcaya - Ifugao]: Office of the Provincial Governor, 1999.
Citatione MLA (9a ed.)Philippines. Province of Ifugao. Office of the Provincial Governor e Planning and Project Development Office. Provincial Development Plan 1999-2004: Province of Ifugao. Office of the Provincial Governor, 1999.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.