Gaya APA
The engineer and his profession. (1975).
California:
ELEX MEDIA KOMPUTINDO.
Gaya Chicago
The engineer and his profession.
.
California:
ELEX MEDIA KOMPUTINDO,
1975.
Text.
Gaya MLA
The engineer and his profession.
.
California:
ELEX MEDIA KOMPUTINDO,
1975.
Text.
Gaya Turabian
The engineer and his profession.
California:
ELEX MEDIA KOMPUTINDO,
1975.
Print.