APA সাইটেশন

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

শিকাগো স্টাইলে সাইটেশন

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

এমএলএ সাইটেশন

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