APA (7th ed.) Citation

Offer, C. K., & Widdicombe, T. (1966). The knocking carol. J. Curwen & Sons.

Chicago Style (17th ed.) Citation

Offer, Charles K., and Trevor Widdicombe. The Knocking Carol. London: J. Curwen & Sons, 1966.

MLA (9th ed.) Citation

Offer, Charles K., and Trevor Widdicombe. The Knocking Carol. J. Curwen & Sons, 1966.

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