Gaya APA
Zetlin, Lev. (1968).
Concrete Design .
:
McGraw Hill.
Gaya Chicago
Zetlin, Lev.
Concrete Design.
:
McGraw Hill,
1968.
Globe.
Gaya MLA
Zetlin, Lev.
Concrete Design.
:
McGraw Hill,
1968.
Globe.
Gaya Turabian
Zetlin, Lev.
Concrete Design.
:
McGraw Hill,
1968.
Globe.