Kleiner. Stages of Occupational Regulation. W.E. Upjohn Institute.
芝加哥风格引文Kleiner. Stages of Occupational Regulation. W.E. Upjohn Institute.
MLA引文Kleiner. Stages of Occupational Regulation. W.E. Upjohn Institute.
警告：这些引文格式不一定是100％准确.
APA引文