Gaya APA
Day, R, W. (2010).
Foundation Engineering Handbook : Design and Construction with 2009 International Building Code Ed. 2 (Ed. 2).
America:
McGraw Hill.
Gaya MLA
Day, Robert, W.
"Foundation Engineering Handbook : Design and Construction with 2009 International Building Code Ed. 2".
Ed. 2
America:
McGraw Hill,
2010.
Text.