Citazione Stile APA (7a Edizione)

Riggs, J. L. (2004). Engineering Economics (7th ed.). Tata McGraw-Hill Publishing Company Ltd.

Citazione stile Chigago Style (17a edizione)

Riggs, James L. Engineering Economics. 7th ed. New Delhi: Tata McGraw-Hill Publishing Company Ltd, 2004.

Citatione MLA (9a ed.)

Riggs, James L. Engineering Economics. 7th ed. Tata McGraw-Hill Publishing Company Ltd, 2004.