Desmond o'Sullivan, M. S. (1993). The New Cambridge English Course Test Book 4 (upper-intermediate). Cambridge University Press.
Chicago Style CitationDesmond o'Sullivan, Michael Swan. The New Cambridge English Course Test Book 4 (upper-intermediate). Cambridge University Press, 1993.
MLA CitationDesmond o'Sullivan, Michael Swan. The New Cambridge English Course Test Book 4 (upper-intermediate). Cambridge University Press, 1993.
Warning: These citations may not always be 100% accurate.