Gigch, J. P. V. (1974). Applied general systems theory. Harper &Row publishers.
シカゴスタイル引用形Gigch, John P. Van. Applied General Systems Theory. london: Harper &Row publishers, 1974.
MLA引用形式Gigch, John P. Van. Applied General Systems Theory. Harper &Row publishers, 1974.
警告: この引用は必ずしも正確ではありません.