APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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