APA (7th ed.) Citation

Le Carré, J. (1984). The little drummer girl. Bantam Books.

Chicago Style (17th ed.) Citation

Le Carré, John. The Little Drummer Girl. Toronto [etc.]: Bantam Books, 1984.

MLA (9th ed.) Citation

Le Carré, John. The Little Drummer Girl. Bantam Books, 1984.

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