Citazione Stile APA (7a Edizione)

Sullivan, W. G., Wicks, E. M. a., & Koelling, C. P. 1. a. (2014). Engineering economy (Sixteenth Edition.). Pearson Education Limited.

Citazione stile Chigago Style (17a edizione)

Sullivan, William G., Elin M. author Wicks, e C. Patrick 1953- author Koelling. Engineering Economy. Sixteenth Edition. England: Pearson Education Limited, 2014.

Citatione MLA (9a ed.)

Sullivan, William G., et al. Engineering Economy. Sixteenth Edition. Pearson Education Limited, 2014.