Gaya APA
Ingram, William T.. (1968).
Sanitary Engineering .
:
McGraw Hill.
Gaya Chicago
Ingram, William T..
Sanitary Engineering.
:
McGraw Hill,
1968.
Globe.
Gaya MLA
Ingram, William T..
Sanitary Engineering.
:
McGraw Hill,
1968.
Globe.
Gaya Turabian
Ingram, William T..
Sanitary Engineering.
:
McGraw Hill,
1968.
Globe.