APA (7th ed.) Citation

Epstein, D. (2015). Project Initiation Process: Part Three. PM World Journal, 4(4), 1.

Chicago Style (17th ed.) Citation

Epstein, Dan. "Project Initiation Process: Part Three." PM World Journal 4, no. 4 (2015): 1.

MLA (9th ed.) Citation

Epstein, Dan. "Project Initiation Process: Part Three." PM World Journal, vol. 4, no. 4, 2015, p. 1.