Gaya APA

Doff, A., Jones, C. (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.