APA (7th ed.) Citation

Hill, C. H., & Hill, R. G. (1990). The quickway crossword dictionary (11th ed.). Penguin.

Chicago Style (17th ed.) Citation

Hill, Colonel H., and Rowland G. Hill. The Quickway Crossword Dictionary. 11th ed. London: Penguin, 1990.

MLA (8th ed.) Citation

Hill, Colonel H., and Rowland G. Hill. The Quickway Crossword Dictionary. 11th ed. Penguin, 1990.