Gaya APA
Pennels, E.. (1978).
Concrete bridge designer's manual .
:
A Viewpoint Publication.
Gaya Chicago
Pennels, E..
Concrete bridge designer's manual.
:
A Viewpoint Publication,
1978.
Text.
Gaya MLA
Pennels, E..
Concrete bridge designer's manual.
:
A Viewpoint Publication,
1978.
Text.
Gaya Turabian
Pennels, E..
Concrete bridge designer's manual.
:
A Viewpoint Publication,
1978.
Print.