Steiner, G. A. (1979). Strategic planning: What every manager must know. Free Press.
Citazione stile Chigago Style (17a edizione)Steiner, George Albert. Strategic Planning: What Every Manager Must Know. New York: Free Press, 1979.
Citatione MLA (9a ed.)Steiner, George Albert. Strategic Planning: What Every Manager Must Know. Free Press, 1979.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.