APA (7th ed.) Citation

Porter, K. A. (1953). The days before (1st English ed.). Secker & Warburg.

Chicago Style (17th ed.) Citation

Porter, Katherine Anne. The Days Before. 1st English ed. London: Secker & Warburg, 1953.

MLA (8th ed.) Citation

Porter, Katherine Anne. The Days Before. 1st English ed. Secker & Warburg, 1953.

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