APA-viite (7. p.)

Riggs, J. L. (1982). Engineering economics (2nd ed.). McGraw-Hill.

Chicago-viite (17. p.)

Riggs, James L. Engineering Economics. 2nd ed. New York: McGraw-Hill, 1982.

MLA-viite (9. p.)

Riggs, James L. Engineering Economics. 2nd ed. McGraw-Hill, 1982.