Gaya APA
NILSON, A, &, D, D.
(0).
Design of concrete structures
(
12th. ed.)
.
New York:
McGraw-Hill Inc.
Gaya MLA
NILSON, Arthur, &, David, Darwin.
"Design of concrete structures".
12th. ed.
New York:
McGraw-Hill Inc,
0.
Buku.