Griggs,John E. (1970). Evaluating marketing change: An application of systems theory. Michigan University.
Chicago-стиль цитированияGriggs,John E. Evaluating Marketing Change: An Application of Systems Theory. East Lansing: Michigan University, 1970.
MLA-цитированиеGriggs,John E. Evaluating Marketing Change: An Application of Systems Theory. Michigan University, 1970.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.