Concepcion, M. B. (1973). Current population control programs. [s.n.].
芝加哥风格引文Concepcion, Mercedes B. Current Population Control Programs. Manila: [s.n.], 1973.
MLA引文Concepcion, Mercedes B. Current Population Control Programs. [s.n.], 1973.
警告：这些引文格式不一定是100％准确.