Cita APA (7a ed.)

Christie, A. (1969). The secret of Chimneys ([1st published], 17th printing.). Pan.

Cita Chicago Style (17a ed.)

Christie, Agatha. The Secret of Chimneys. [1st published], 17th printing. London: Pan, 1969.

Cita MLA (9a ed.)

Christie, Agatha. The Secret of Chimneys. [1st published], 17th printing. Pan, 1969.