APA (7th ed.) Citation

Frost, P. K., & Schwarz, C. M. (1988). Chambers English dictionary. Cambridge.

Chicago Style (17th ed.) Citation

Frost, Pandora Kerr, and C. M. Schwarz. Chambers English Dictionary. New York: Cambridge, 1988.

MLA (9th ed.) Citation

Frost, Pandora Kerr, and C. M. Schwarz. Chambers English Dictionary. Cambridge, 1988.