APA (7e ed.) Bronvermelding

Sullivan, W. G., Wicks, E. M., Koelling, C. P. 1., & De Garmo, E. P. (2012). Engineering economy (15th ed., International ed.). Pearson.

Chicago (17e ed.) Bronvermelding

Sullivan, William G., Elin M. Wicks, C. Patrick 1953 Koelling, en E. Paul De Garmo. Engineering Economy. 15th ed., International ed. Boston: Pearson, 2012.

MLA (9e ed.) Bronvermelding

Sullivan, William G., et al. Engineering Economy. 15th ed., International ed. Pearson, 2012.