APA استشهاد

Beecroft, G. D., & Duffy, G. L. M. (2003). Executive guide to improvement and change. Pearson.

استشهاد بنمط شيكاغو

Beecroft, G. Dennis, و Grace L Moran Duffy. Executive Guide to Improvement and Change. New Delhi: Pearson, 2003.

MLA استشهاد

Beecroft, G. Dennis, و Grace L Moran Duffy. Executive Guide to Improvement and Change. Pearson, 2003.