Abrams, A. (1964). Unfinished tasks in the behavioral sciences. Williams & Wilkins.
芝加哥风格引文Abrams, Arnold. Unfinished Tasks in the Behavioral Sciences. Baltimore: Williams & Wilkins, 1964.
MLA引文Abrams, Arnold. Unfinished Tasks in the Behavioral Sciences. Williams & Wilkins, 1964.
警告：这些引文格式不一定是100％准确.