Doeppers, D. F. (1976). The evolution of the geography of religious adherence in the Philippines before 1898. s.n.].
Citazione stile Chigago Style (17a edizione)Doeppers, Daniel Frederick. The Evolution of the Geography of Religious Adherence in the Philippines Before 1898. [S.l: s.n.], 1976.
Citatione MLA (9a ed.)Doeppers, Daniel Frederick. The Evolution of the Geography of Religious Adherence in the Philippines Before 1898. s.n.], 1976.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.