Cita APA

 Heerkens, G. (2014).  Project management.  Mc Graw Hill.

Chicago Style Citation

 Heerkens, Gary.  Project Management.  Mc Graw Hill, 2014.

Cita MLA

 Heerkens, Gary.  Project Management.  Mc Graw Hill, 2014.

Atenció: Aquestes cites poden no estar 100% correctes.