PRYOR FREED. (1987). ENERGETIC MANAGER. PRENTICE -HALL INTERNATIONAL, INC.
芝加哥风格引文PRYOR FREED. ENERGETIC MANAGER. NEW JERSEY: PRENTICE -HALL INTERNATIONAL, INC, 1987.
MLA引文PRYOR FREED. ENERGETIC MANAGER. PRENTICE -HALL INTERNATIONAL, INC, 1987.
警告：这些引文格式不一定是100％准确.