iGLibrary (online resource). (1913). The Non-Christian Peoples of the Philippine Islands: The National Geographic magazine, Vol. XXIV, No. 11. S.N.
Citazione stile Chigago Style (17a edizione)iGLibrary (online resource). The Non-Christian Peoples of the Philippine Islands: The National Geographic Magazine, Vol. XXIV, No. 11. [Washington, DC: S.N, 1913.
Citatione MLA (9a ed.)iGLibrary (online resource). The Non-Christian Peoples of the Philippine Islands: The National Geographic Magazine, Vol. XXIV, No. 11. S.N, 1913.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.