Gigch, J. P. V. (1974). Applied general systems theory. Harper &Row publishers.
Chicago Edition CitationGigch, John P. Van. Applied General Systems Theory. london: Harper &Row publishers, 1974.
Deismireacht MLAGigch, John P. Van. Applied General Systems Theory. Harper &Row publishers, 1974.
Rabhadh: D'fhéadfadh nach mbeadh na deismireachtaí seo 100% cruinn i gcónaí.