APA aipamena

Kim heldman, Claudia baca, & Patti jansen. (1991). Project management professional: Study guide. wiley india.

Chicago Style aipamena

Kim heldman, Claudia baca, and Patti jansen. Project Management Professional: Study Guide. New delhi: wiley india, 1991.

MLA aipamena

Kim heldman, et al. Project Management Professional: Study Guide. wiley india, 1991.