Gaya APA

Schmitz, J, S. (1971). The Abra Mission in Northern Luzon, Philippines, 1598-1955,transl.by J.Vogelsang S.V.D. :Die Abra-Mission auf Nordluzon. 1964. . Cebu City: University of San Carlos.

Gaya MLA

Schmitz, Josef,, S.V.D.. "The Abra Mission in Northern Luzon, Philippines, 1598-1955,transl.by J.Vogelsang S.V.D. :Die Abra-Mission auf Nordluzon. 1964. ". Cebu City: University of San Carlos, 1971. Buku.