Unitas. (1966). The population problem of the Philippines. University of Santo Tomas.
芝加哥风格引文Unitas. The Population Problem of the Philippines. [Manila]: University of Santo Tomas, 1966.
MLA引文Unitas. The Population Problem of the Philippines. University of Santo Tomas, 1966.
警告：这些引文格式不一定是100％准确.