Spencer, D. H. (1977). English for proficiency (2a. ed.). Oxford: Oxford University Press.
Chicago Style CitationSpencer, D. H. English for Proficiency. 2a. ed. Oxford: Oxford University Press, 1977.
MLA CitationSpencer, D. H. English for Proficiency. 2a. ed. Oxford: Oxford University Press, 1977.
Warning: These citations may not always be 100% accurate.