APA aipamena

Riggs, J. L., & West, T. M. (1986). Engineering economics (3rd ed.). McGraw-Hill.

Chicago Style aipamena

Riggs, James L., and Thomas M. West. Engineering Economics. 3rd ed. New York: McGraw-Hill, 1986.

MLA aipamena

Riggs, James L., and Thomas M. West. Engineering Economics. 3rd ed. McGraw-Hill, 1986.