Cita APA (7th ed.)

Christie, A. <. (1984). Death in the air = Tod in den Wolken <engl.>: Agatha Christie. Berkley Books.

Cita Chicago (17th ed.)

Christie, Agatha <1890-1976>. Death in the Air = Tod in Den Wolken <engl.>: Agatha Christie. New York: Berkley Books, 1984.

Cita MLA (8th ed.)

Christie, Agatha <1890-1976>. Death in the Air = Tod in Den Wolken <engl.>: Agatha Christie. Berkley Books, 1984.