Παραπομπή APA

Heerkens,Gary R. (2003). Project management. Tata McGraw Hill.

Παραπομπή Chicago Style

Heerkens,Gary R. Project Management. New Delhi: Tata McGraw Hill, 2003.

Παραπομπή MLA

Heerkens,Gary R. Project Management. Tata McGraw Hill, 2003.