Chamot...et.al, A. U. UP close: English for global communication. Heinle and Heinle.
Cita Chicago Style (17a ed.)Chamot...et.al, Ana Uhl. UP Close: English for Global Communication. Heinle and Heinle.
Cita MLA (8a ed.)Chamot...et.al, Ana Uhl. UP Close: English for Global Communication. Heinle and Heinle.
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