APA (7th ed.) Citation

Allingham, M. (1950). Look to the lady. Penguin Books.

Chicago Style (17th ed.) Citation

Allingham, Margery. Look to the Lady. London ; Auckland: Penguin Books, 1950.

MLA (8th ed.) Citation

Allingham, Margery. Look to the Lady. Penguin Books, 1950.

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