Lua APA (7ú heag.)

Blank, L. (2005). Engineering EconomyLeland Blank and Anthony Tarquin. McGraw-Hill.

Lua i Stíl Chicago (17ú heag.)

Blank, Leland. Engineering EconomyLeland Blank and Anthony Tarquin. McGraw-Hill, 2005.

Lua MLA (8ú heag.)

Blank, Leland. Engineering EconomyLeland Blank and Anthony Tarquin. McGraw-Hill, 2005.

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