APA (7th ed.) Citation

Groom, A. J. P. (1948). The purple twilight. T. Werner Laurie.

Chicago Style (17th ed.) Citation

Groom, Arthur John Pelham. The Purple Twilight. London: T. Werner Laurie, 1948.

MLA (9th ed.) Citation

Groom, Arthur John Pelham. The Purple Twilight. T. Werner Laurie, 1948.

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