Conference Board & Bursk, E. C. (1973). Challenge to leadership: Managing in a changing world. Free Press.
Цитирование в стиле Чикаго (17-е изд.)Conference Board и Edward Collins Bursk. Challenge to Leadership: Managing in a Changing World. New York: Free Press, 1973.
Цитирование MLA (9-е изд.)Conference Board и Edward Collins Bursk. Challenge to Leadership: Managing in a Changing World. Free Press, 1973.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.