David, F. R. (1991). Strategic management (3rd ed.). Merrill ; Collier Macmillan Canada ; Maxwell Macmillan International.
Cita Chicago (17th ed.)David, Fred R. Strategic Management. 3rd ed. New York : Toronto : New York: Merrill ; Collier Macmillan Canada ; Maxwell Macmillan International, 1991.
Cita MLA (9th ed.)David, Fred R. Strategic Management. 3rd ed. Merrill ; Collier Macmillan Canada ; Maxwell Macmillan International, 1991.
Atenció: Aquestes cites poden no estar 100% correctes.