Gaya APA

Peurifoy, R, L., Oberlender, G, D. (2014). Estimating construction costs (Ed. VI). New York: Mc Graw-Hill.

Gaya MLA

Peurifoy, Robert, L.., Oberlender, Garold, D.. "Estimating construction costs". Ed. VI New York: Mc Graw-Hill, 2014. Text.