APA (7th ed.) Citation

Schur, N. W. (1987). A dictionary of challenging words. Penguin.

Chicago Style (17th ed.) Citation

Schur, Norman W. A Dictionary of Challenging Words. London: Penguin, 1987.

MLA (8th ed.) Citation

Schur, Norman W. A Dictionary of Challenging Words. Penguin, 1987.

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