Cita APA (7a ed.)
University Of Birmingham. (2005). Collins Cobuild English grammar (2nd ed.). HarperCollins.
Cita Chicago Style (17a ed.)
University Of Birmingham. Collins Cobuild English Grammar. 2nd ed. Glasgow, Scotland: HarperCollins, 2005.
Cita MLA (9a ed.)
University Of Birmingham. Collins Cobuild English Grammar. 2nd ed. HarperCollins, 2005.
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