APA (7th ed.) Citation

Christie, A. (1978). Why didn't they ask Evans? Collins for The Crime Club.

Chicago Style (17th ed.) Citation

Christie, Agatha. Why Didn't They Ask Evans? London: Collins for The Crime Club, 1978.

MLA (8th ed.) Citation

Christie, Agatha. Why Didn't They Ask Evans? Collins for The Crime Club, 1978.

Warning: These citations may not always be 100% accurate.