APA Style
Heerkens, G, R. (2005).
Project Management 24 Lessons to Help You Master Any Project .
United States (US):
CWL Publishing Enterprises.
MLA Style
Heerkens, Gary, R..
"Project Management 24 Lessons to Help You Master Any Project".
United States (US):
CWL Publishing Enterprises,
2005.
Monograf.