APA استشهاد

Christie, A. (1993). Witness for the Prosecution & Selected Plays. Harper Collins Publishers.

استشهاد بنمط شيكاغو

Christie, Agatha. Witness for the Prosecution & Selected Plays. London: Harper Collins Publishers, 1993.

MLA استشهاد

Christie, Agatha. Witness for the Prosecution & Selected Plays. Harper Collins Publishers, 1993.