Riggs, Jim. Engineering economics / James L. Riggs. - New York: McGraw-Hill, c1977. - xvii, 617 p. : ill. ; 25 cm. - McGraw-Hill series in industrial engineering and management science . Includes index. Bibliography: p. 581-582. ISBN: 0070528608 Subjects--Topical Terms: Engineering economyManagerial economics Dewey Class. No.: 620.006