APA (7th ed.) Citation

Cooper, D. (1950). Operation heartbreak: A story. Rupert Hart-Davis.

Chicago Style (17th ed.) Citation

Cooper, Duff. Operation Heartbreak: A Story. London: Rupert Hart-Davis, 1950.

MLA (8th ed.) Citation

Cooper, Duff. Operation Heartbreak: A Story. Rupert Hart-Davis, 1950.

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