APA (7th ed.) Citation

Knight, J., & Dann, P. (1993). Bon appetit, Bertie! (1st American ed.).

Chicago Style (17th ed.) Citation

Knight, Joan, and Penny Dann. Bon Appetit, Bertie! 1st American ed. 1993.

MLA (9th ed.) Citation

Knight, Joan, and Penny Dann. Bon Appetit, Bertie! 1st American ed. 1993.

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