APA (7th ed.) Citation

Kirkpatrick, E. M., & Schwarz, C. M. (1983). Chambers 20th century dictionary (New ed.). Chambers.

Chicago Style (17th ed.) Citation

Kirkpatrick, E. M., and C. M. Schwarz. Chambers 20th Century Dictionary. New ed. Edinburgh: Chambers, 1983.

MLA (8th ed.) Citation

Kirkpatrick, E. M., and C. M. Schwarz. Chambers 20th Century Dictionary. New ed. Chambers, 1983.