Gaspar, K. (1986). Pumipiglas, teyolohiya ng bayan: A preliminary sketch on the theology of struggle from a cultural-liturgical perspective. Socio-Pastoral Institute.
Παραπομπή σε μορφή Chicago (17η εκδ.)Gaspar, Karl. Pumipiglas, Teyolohiya Ng Bayan: A Preliminary Sketch on the Theology of Struggle from a Cultural-liturgical Perspective. Quezon City: Socio-Pastoral Institute, 1986.
Παραπομπή σε μορφή MLA (9th εκδ.)Gaspar, Karl. Pumipiglas, Teyolohiya Ng Bayan: A Preliminary Sketch on the Theology of Struggle from a Cultural-liturgical Perspective. Socio-Pastoral Institute, 1986.
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