Gaya APA
Firsten, R.
(2003).
Contemporary eng;ish : Book 2 / Richard Firsten, Gery Strei
.
Ciputat:
Renika Cipta.
Gaya MLA
Firsten, Richard.
"Contemporary eng;ish : Book 2 / Richard Firsten, Gery Strei".
Ciputat:
Renika Cipta,
2003.
Text.