APA (7th ed.) Citation

Dermo ut, M., & Koning, H. (1960). Days before yesterday: A novel. Secker & Warburg.

Chicago Style (17th ed.) Citation

Dermo ut, Maria, and Hans Koning. Days Before Yesterday: A Novel. London: Secker & Warburg, 1960.

MLA (8th ed.) Citation

Dermo ut, Maria, and Hans Koning. Days Before Yesterday: A Novel. Secker & Warburg, 1960.

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