Blank, L., & Tarquin, A. (1998). Engineering economy (4th ed.). Singapore: The McGraw-Hill Companies.
Παραπομπή Chicago StyleBlank, Leland, and Anthony Tarquin. Engineering Economy. 4th ed. Singapore: The McGraw-Hill Companies, 1998.
Παραπομπή MLABlank, Leland, and Anthony Tarquin. Engineering Economy. 4th ed. Singapore: The McGraw-Hill Companies, 1998.
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