APA (7e ed.) Bronvermelding

Sullivan, W. G., Wicks, E. M., & Koelling, C. P. 1. (2020). Engineering economy (Seventeenth edition.). Pearson Education Limited.

Chicago (17e ed.) Bronvermelding

Sullivan, William G., Elin M. Wicks, en C. Patrick 1953 Koelling. Engineering Economy. Seventeenth edition. United Kingdom: Pearson Education Limited, 2020.

MLA (9e ed.) Bronvermelding

Sullivan, William G., et al. Engineering Economy. Seventeenth edition. Pearson Education Limited, 2020.