APA (7th ed.) Citation

Hill, L. A. (1971). A fouth crossword puzzle book. Oxford University Press.

Chicago Style (17th ed.) Citation

Hill, Leslie A. A Fouth Crossword Puzzle Book. London: Oxford University Press, 1971.

MLA (9th ed.) Citation

Hill, Leslie A. A Fouth Crossword Puzzle Book. Oxford University Press, 1971.