Citazione Stile APA (7a Edizione)
American Association of Cost Engineers & Humphreys, K. K. (1991). Jelen's cost and optimization engineering (3rd ed.). McGraw-Hill.
Citazione stile Chigago Style (17a edizione)
American Association of Cost Engineers e Kenneth King Humphreys. Jelen's Cost and Optimization Engineering. 3rd ed. New York: McGraw-Hill, 1991.
Citatione MLA (9a ed.)
American Association of Cost Engineers e Kenneth King Humphreys. Jelen's Cost and Optimization Engineering. 3rd ed. McGraw-Hill, 1991.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.