APA (7e ed.) Bronvermelding

Phillips, J. J., & Zuniga, L. (2008). Costs and ROI: Evaluating at the ultimate level. Pfeiffer.

Chicago (17e ed.) Bronvermelding

Phillips, Jack J., en Lizette Zuniga. Costs and ROI: Evaluating at the Ultimate Level. San Francisco, CA: Pfeiffer, 2008.

MLA (8e ed.) Bronvermelding

Phillips, Jack J., en Lizette Zuniga. Costs and ROI: Evaluating at the Ultimate Level. Pfeiffer, 2008.