Dyfyniad APA

O'Connell, S. (1996). Focus on first certificate for revised exam. [New York]: Longman.

Dyfyniad Arddull Chicago

O'Connell, Sue. Focus On First Certificate for Revised Exam. [New York]: Longman, 1996.

Dyfyniad MLA

O'Connell, Sue. Focus On First Certificate for Revised Exam. [New York]: Longman, 1996.

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