Pettigrew, A. (1989). Longitudinal Methods to Study Change: Theory and Practice. Routledge.
芝加哥风格引文Pettigrew, A. Longitudinal Methods to Study Change: Theory and Practice. Routledge, 1989.
MLA引文Pettigrew, A. Longitudinal Methods to Study Change: Theory and Practice. Routledge, 1989.
警告：这些引文格式不一定是100％准确.