Sahgal , P. (1987). Time Management for executives. Manage Dev. Inst.
芝加哥风格引文Sahgal , Punam. Time Management for Executives. New Delhi: Manage Dev. Inst, 1987.
MLA引文Sahgal , Punam. Time Management for Executives. Manage Dev. Inst, 1987.
警告：这些引文格式不一定是100％准确.