Swan, & Walter. (1993). The new Cambridge English course: Upper-intermediate student book 4. Cambridge: C.U.P..
Chicago Style CitationSwan, and Walter. The New Cambridge English Course: Upper-intermediate Student Book 4. Cambridge: C.U.P., 1993.
MLA CitationSwan, and Walter. The New Cambridge English Course: Upper-intermediate Student Book 4. Cambridge: C.U.P., 1993.
Warning: These citations may not always be 100% accurate.