APA (7th ed.) Citation

Epstein, D. (2014). Project Estimating Process. PM World Journal, 3(7), 1.

Chicago Style (17th ed.) Citation

Epstein, Dan. "Project Estimating Process." PM World Journal 3, no. 7 (2014): 1.

MLA (9th ed.) Citation

Epstein, Dan. "Project Estimating Process." PM World Journal, vol. 3, no. 7, 2014, p. 1.