Hoorens, S. (2011). Low fertility in Europe: Is there still reason to worry? RAND Corporation.
芝加哥风格引文Hoorens, Stijn. Low Fertility in Europe: Is There Still Reason to Worry? Santa Monica, Calif.: RAND Corporation, 2011.
MLA引文Hoorens, Stijn. Low Fertility in Europe: Is There Still Reason to Worry? RAND Corporation, 2011.
警告：这些引文格式不一定是100％准确.