Gaya APA
Harmer, J., Surguine, H.
(1987).
Coast to Coast: Workbook 1
(
ed. 12)
.
USA:
Longman.
Gaya MLA
Harmer, Jeremy., Surguine, Harold.
"Coast to Coast: Workbook 1".
ed. 12
USA:
Longman,
1987.
Text.