Close, R. A., & Close, R. A. (1992). A teachers' grammar: An approach to the central problems of English. England: Language Teaching.
Chicago Style CitationClose, R. A., and R. A. Close. A Teachers' Grammar: An Approach to the Central Problems of English. England: Language Teaching, 1992.
MLA CitationClose, R. A., and R. A. Close. A Teachers' Grammar: An Approach to the Central Problems of English. England: Language Teaching, 1992.
Warning: These citations may not always be 100% accurate.