Shirreffs B. Brett & Conway D. Darren. (2012). On Course for IELTS: Teacher's Book (2nd ed.). Victoria, Oxford University Press, 2012.
Chicagoスタイル(17版)引用形式Shirreffs B. Brett , Conway D. Darren. On Course for IELTS: Teacher's Book. 2nd ed. Victoria, Oxford University Press, 2012, 2012.
MLA(9版)引用形式Shirreffs B. Brett , Conway D. Darren. On Course for IELTS: Teacher's Book. 2nd ed. Victoria, Oxford University Press, 2012, 2012.
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