Gaya APA
Pennells, E.. (1981).
Concrete bridge designer`s manual / E. Pennells .
:
London: A Viepoint Publication.
Gaya Chicago
Pennells, E..
Concrete bridge designer`s manual / E. Pennells.
:
London: A Viepoint Publication,
1981.
Buku.
Gaya MLA
Pennells, E..
Concrete bridge designer`s manual / E. Pennells.
:
London: A Viepoint Publication,
1981.
Buku.
Gaya Turabian
Pennells, E..
Concrete bridge designer`s manual / E. Pennells.
:
London: A Viepoint Publication,
1981.
Buku.