Phillips, J. J., Brantley, W., & Phillips, P. P. (2012). Project management ROI: A step-by-step guide for measuring the impact and ROI for projects. Wiley.
Lua i Stíl Chicago (17ú heag.)Phillips, Jack J., Wayne Brantley, agus Patricia Pulliam Phillips. Project Management ROI: A Step-by-step Guide for Measuring the Impact and ROI for Projects. Hoboken, N.J.: Wiley, 2012.
Lua MLA (9ú heag.)Phillips, Jack J., et al. Project Management ROI: A Step-by-step Guide for Measuring the Impact and ROI for Projects. Wiley, 2012.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.