Gaya APA
PMP Certification: a beginner's guide. (2010).
New York:
[s.n.].
Gaya Chicago
PMP Certification: a beginner's guide.
.
New York:
[s.n.],
2010.
Text.
Gaya MLA
PMP Certification: a beginner's guide.
.
New York:
[s.n.],
2010.
Text.
Gaya Turabian
PMP Certification: a beginner's guide.
New York:
[s.n.],
2010.
Print.