APA (7th ed.) Citation

Crofts, F. W. (1945). Enemy unseen: An Inspector French detective story. Hodder & Stoughton.

Chicago Style (17th ed.) Citation

Crofts, Freeman Wills. Enemy Unseen: An Inspector French Detective Story. London: Hodder & Stoughton, 1945.

MLA (8th ed.) Citation

Crofts, Freeman Wills. Enemy Unseen: An Inspector French Detective Story. Hodder & Stoughton, 1945.

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