APA aipamena

Costin, A. A. . .. (2009). Managing difficult projects (1.). Butterworth- Heineman.

Chicago Style aipamena

Costin, Andre A. Managing Difficult Projects. 1. Oxford: Butterworth- Heineman, 2009.

MLA aipamena

Costin, Andre A. Managing Difficult Projects. 1. Butterworth- Heineman, 2009.