Gaya APA

Peurifoy, R, L., L, P, R. (2014). Estimating Construction Costs Ed. 6 (Ed. 6). America: McGraw Hill.

Gaya MLA

Peurifoy, Robert, L., L, Peurifoy., Robert. "Estimating Construction Costs Ed. 6". Ed. 6 America: McGraw Hill, 2014. Text.