Cita APA (7a ed.)

Christie, A. (1983). Why didn't they ask Evans? Bantam Books.

Cita Chicago Style (17a ed.)

Christie, Agatha. Why Didn't They Ask Evans? Toronto ; New York: Bantam Books, 1983.

Cita MLA (8a ed.)

Christie, Agatha. Why Didn't They Ask Evans? Bantam Books, 1983.

Precaución: Estas citas no son 100% exactas.