Gaya APA
Morgenthal, G., Olney, P.
(2016).
Concrete Hinges and Integral Bridge Piers
.
America:
ASCE Library.
Gaya MLA
Morgenthal, Guido., Olney, Peter.
"Concrete Hinges and Integral Bridge Piers".
America:
ASCE Library,
2016.
Text.