APA استشهاد

Christie, A. A. (2002). A murder is announced: Novel.

استشهاد بنمط شيكاغو

Christie, Agatha; Author. A Murder Is Announced: Novel. London, HarperCollins Publishers Inc, 2002.

MLA استشهاد

Christie, Agatha; Author. A Murder Is Announced: Novel. 2002.