Gaya APA
l.Peurifoy, R., oberlender, G, D.
(2014).
Estimating construction costs
.
New York:
McGraw-Hill.
Gaya MLA
l.Peurifoy, Robert., oberlender, Garold, D.
"Estimating construction costs".
New York:
McGraw-Hill,
2014.
Buku.