(2004). What do you know about British & American English: Understand the main differences between British and American English. Singapore: Learners Publishing.
Trích dẫn kiểu ChicagoWhat Do You Know About British & American English: Understand the Main Differences between British and American English. Singapore: Learners Publishing, 2004.
MLA CitationWhat Do You Know About British & American English: Understand the Main Differences between British and American English. Singapore: Learners Publishing, 2004.
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