Gaya APA
Adrian, D., Christopher, J. (1996).
Language in use : pre-intermediate classroom book / Adrian Doff, Christopher Jones (Cet.6).
New York:
.
Gaya MLA
Doff, Adrian., Jones, Christopher.
"Language in use : pre-intermediate classroom book / Adrian Doff, Christopher Jones".
Cet.6
New York:
,
1996.
Textbook.