APA ציטוט

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

Trích dẫn kiểu Chicago

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

ציטוט MLA

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