APA

Degarmo E. . P., . (1997). Engineering Economy. New Jersey: Prentice - Hall International . Inc.

Chicago

Degarmo E Paul, . 1997. Engineering Economy. New Jersey: Prentice - Hall International . Inc.

Harvard

Degarmo E. . P., . (1997). Engineering Economy. New Jersey: Prentice - Hall International . Inc.

MLA

Degarmo E Paul, . Engineering Economy. New Jersey: Prentice - Hall International . Inc. 1997.