Gaya APA
Day, R. (2010).
Foundation Engineering Handbook : Design and Construction with the 2009 International Building Code (ed. 2).
New York:
McGraw-Hill.
Gaya MLA
Day, RobertW..
"Foundation Engineering Handbook : Design and Construction with the 2009 International Building Code".
ed. 2
New York:
McGraw-Hill,
2010.
e-book.