Heyel, C. (1958). Appraising executive performance. American Management Association.
Chicago-стиль цитированияHeyel, Carl. Appraising Executive Performance. New York: American Management Association, 1958.
MLA-цитированиеHeyel, Carl. Appraising Executive Performance. American Management Association, 1958.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.