Langan, J., & John Langan. (2008). English skills with readings. Boston: McGraw-Hill Higher Education.
Trích dẫn kiểu ChicagoLangan, John, và John Langan. English Skills With Readings. Boston: McGraw-Hill Higher Education, 2008.
MLA citiranjeLangan, John, và John Langan. English Skills With Readings. Boston: McGraw-Hill Higher Education, 2008.
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