The History and Status of General Systems Theory. - Von Bertalanffy, L. (Academy of Management Journal, 1972)

Trends in general systems theory - Klir, George J. (Wiley-Interscience, 1972)
Keywords: System theory

Introduction to the systems approach in educational planning and management - Kraft, Richard H.P.; Latta, Raymond F. (Educational Technology, 1972)
Keywords: ⛔ No DOI found