APA استشهاد

Koontz, H. W. (2011). Essentials of management: An international perspective (8 edition.).

استشهاد بنمط شيكاغو

Koontz, Harold; Weihrich. Essentials of Management: An International Perspective. 8 edition. Tata Mc Graw Hill: New Delhi, 2011.

MLA استشهاد

Koontz, Harold; Weihrich. Essentials of Management: An International Perspective. 8 edition. 2011.