APA

تأليف Palmer G., .Real Writing 4 With answers. New York:Cambridge University Press,2008: .

Chicago

تأليف Palmer Graham, .Real Writing 4 With answers. New York:Cambridge University Press,2008: .

Harvard

تأليف Palmer G., .Real Writing 4 With answers. New York:Cambridge University Press,2008: .

MLA

تأليف Palmer Graham, .New York:Cambridge University Press,2008: . .