Sweezy, A. (1973). Labor shortage and population policy. California Institute of Technology.
芝加哥风格引文Sweezy, Alan. Labor Shortage and Population Policy. Pasedena, Calif: California Institute of Technology, 1973.
MLA引文Sweezy, Alan. Labor Shortage and Population Policy. California Institute of Technology, 1973.
警告：这些引文格式不一定是100％准确.