Creep, R. O. (1963). Human fertility and population problems: Proceedings of the seminars. Schenkman Pub.
芝加哥风格引文Creep, Roy Orval. Human Fertility and Population Problems: Proceedings of the Seminars. Cambridge, MA: Schenkman Pub, 1963.
MLA引文Creep, Roy Orval. Human Fertility and Population Problems: Proceedings of the Seminars. Schenkman Pub, 1963.
警告：这些引文格式不一定是100％准确.