APA
Swan M. . W. C., . (2011). Oxford english grammar course intermediate : a grammar practice book for intermediate and upper-inermediate students of english with answers. Oxford university press: New Delhi.
Chicago
Swan Michael Walter Catherine, . 2011. Oxford english grammar course intermediate : a grammar practice book for intermediate and upper-inermediate students of english with answers. Oxford university press: New Delhi.
Harvard
Swan M. . W. C., . (2011). Oxford english grammar course intermediate : a grammar practice book for intermediate and upper-inermediate students of english with answers. Oxford university press: New Delhi.
MLA
Swan Michael Walter Catherine, . Oxford english grammar course intermediate : a grammar practice book for intermediate and upper-inermediate students of english with answers. Oxford university press: New Delhi. 2011.