JELEN'S & HUMPHREYS, K. K. [. (1991). Jelen's cost and optimization engineering/edeted byKenneth K. Humphreys.--Ed. 3. McGraw-Hill.

JELEN'S and Kenneth K. [ed] HUMPHREYS. Jelen's Cost and Optimization Engineering/edeted ByKenneth K. Humphreys.--Ed. 3. New York: McGraw-Hill, 1991.

JELEN'S and Kenneth K. [ed] HUMPHREYS. Jelen's Cost and Optimization Engineering/edeted ByKenneth K. Humphreys.--Ed. 3. McGraw-Hill, 1991.