Gaya APA
Heerkens, Gary R. (2005).
Project management .
New York:
McGraw-Hill, Inc.
Gaya Chicago
Heerkens, Gary R.
Project management.
New York:
McGraw-Hill, Inc,
2005.
Text.
Gaya MLA
Heerkens, Gary R.
Project management.
New York:
McGraw-Hill, Inc,
2005.
Text.
Gaya Turabian
Heerkens, Gary R.
Project management.
New York:
McGraw-Hill, Inc,
2005.
Print.