Gaya APA
W.DAY, K.
(2005).
Concrete Mix Design, Quality Control and Specification
(
ed. 2)
.
London:
E & FN Spon,.
Gaya MLA
W.DAY, KEN.
"Concrete Mix Design, Quality Control and Specification".
ed. 2
London:
E & FN Spon,,
2005.
e-book.