APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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