Gaya APA

A., P, I, J., Robinson, R, B. (1994). Formulation, implementation and control of competitive strategy (5th ed). Burr Ridge, IL: Irwin.

Gaya MLA

A., Pearce, II,, John., Robinson, Richard, B.. "Formulation, implementation and control of competitive strategy". 5th ed Burr Ridge, IL: Irwin, 1994. Text.