APA (7th ed.) Citation

Punshon, E. R. (1948). Crossword mystery. Penguin.

Chicago Style (17th ed.) Citation

Punshon, E. R. Crossword Mystery. Harmondsworth, Middlesex: Penguin, 1948.

MLA (8th ed.) Citation

Punshon, E. R. Crossword Mystery. Penguin, 1948.

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