Philippine Book Company. (1949). An outline of Philippine social life and progress. s.n.
芝加哥风格引文Philippine Book Company. An Outline of Philippine Social Life and Progress. [Manila: s.n, 1949.
MLA引文Philippine Book Company. An Outline of Philippine Social Life and Progress. s.n, 1949.
警告：这些引文格式不一定是100％准确.