APA استشهاد

Dittrich, J. E. (1988). General manager and strategy formulation: Objectives, missions, strategies and policies. John Wiley.

استشهاد بنمط شيكاغو

Dittrich, John E. General Manager and Strategy Formulation: Objectives, Missions, Strategies and Policies. New Delhi: John Wiley, 1988.

MLA استشهاد

Dittrich, John E. General Manager and Strategy Formulation: Objectives, Missions, Strategies and Policies. John Wiley, 1988.