APA

Swan M. ت., .Understanding Ideas Advanced reading skills. New York:Cambridge University Press,1991: .

Chicago

Swan Michael تأليف, .Understanding Ideas Advanced reading skills. New York:Cambridge University Press,1991: .

Harvard

Swan M. ت., .Understanding Ideas Advanced reading skills. New York:Cambridge University Press,1991: .

MLA

Swan Michael تأليف, .New York:Cambridge University Press,1991: . .