Bautista, Á. P., & Gatbonton, E. B. (2003). Shell ornamentation of La Purísima Concepción church, Guiuan, Eastern Samar. National Commission for Culture and the Arts.
Chicago Style (17. basım) AtıfBautista, Ángel P., ve Esperanza Bunag Gatbonton. Shell Ornamentation of La Purísima Concepción Church, Guiuan, Eastern Samar. Manila: National Commission for Culture and the Arts, 2003.
MLA (9th ed.) AtıfBautista, Ángel P., ve Esperanza Bunag Gatbonton. Shell Ornamentation of La Purísima Concepción Church, Guiuan, Eastern Samar. National Commission for Culture and the Arts, 2003.
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