APA ציטוט

Riggs, J. L. (1982). Essentials of engineering economics. McGraw-Hill.

Chicago Style (17th ed.) Citation

Riggs, James L. Essentials of Engineering Economics. New York: McGraw-Hill, 1982.

ציטוט MLA

Riggs, James L. Essentials of Engineering Economics. McGraw-Hill, 1982.