Gaya APA
Sandler, P.L.. (1982).
The Petroleum programme : english for the oil industry .
Jakarta:
Gramedia.
Gaya Chicago
Sandler, P.L..
The Petroleum programme : english for the oil industry.
Jakarta:
Gramedia,
1982.
Text.
Gaya MLA
Sandler, P.L..
The Petroleum programme : english for the oil industry.
Jakarta:
Gramedia,
1982.
Text.
Gaya Turabian
Sandler, P.L..
The Petroleum programme : english for the oil industry.
Jakarta:
Gramedia,
1982.
Print.