Cita APA (7a ed.)

Christie, A. (1969). Hallowe'en party. Published for the Crime Club by Collins.

Cita Chicago Style (17a ed.)

Christie, Agatha. Hallowe'en Party. London: Published for the Crime Club by Collins, 1969.

Cita MLA (8a ed.)

Christie, Agatha. Hallowe'en Party. Published for the Crime Club by Collins, 1969.