APA

Baker A. ت., .Tree Or Three:An elementary Pronunciation Course. New York:Cambridge University Press,2006: .

Chicago

Baker Ann تأليف, .Tree Or Three:An elementary Pronunciation Course. New York:Cambridge University Press,2006: .

Harvard

Baker A. ت., .Tree Or Three:An elementary Pronunciation Course. New York:Cambridge University Press,2006: .

MLA

Baker Ann تأليف, .New York:Cambridge University Press,2006: . .