APA-viite (7. p.)
Heldman, K. (2016). PMP: Project management professional exam : study guide (Eighth edition.). Sybex, a Wiley brand.
Chicago-viite (17. p.)
Heldman, Kim. PMP: Project Management Professional Exam : Study Guide. Eighth edition. Indianapolis, Indiana: Sybex, a Wiley brand, 2016.
MLA-viite (9. p.)
Heldman, Kim. PMP: Project Management Professional Exam : Study Guide. Eighth edition. Sybex, a Wiley brand, 2016.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.