Gaya APA

Tarquin, L, T, B, A, J. (1989). Enginerneering Economy Third Edition (edisi ke 3,). USA: Mc Graw-Hill Internation Edition.

Gaya MLA

Tarquin, Leland, T., Blank,, Anthony, J.. "Enginerneering Economy Third Edition". edisi ke 3, USA: Mc Graw-Hill Internation Edition, 1989. Text.