Van Gigch, J. P. (1974). Applied general systems theory. Harper & Row.
芝加哥风格引文Van Gigch, John P. Applied General Systems Theory. New York: Harper & Row, 1974.
MLA引文Van Gigch, John P. Applied General Systems Theory. Harper & Row, 1974.
警告：这些引文格式不一定是100％准确.