Philippine Book Company. (1949). An outline of Philippine social life and progress. s.n.
Chicago Style (17. basım) AtıfPhilippine Book Company. An Outline of Philippine Social Life and Progress. [Manila: s.n, 1949.
MLA (9th ed.) AtıfPhilippine Book Company. An Outline of Philippine Social Life and Progress. s.n, 1949.
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