APA (7th ed.) Citation

Hellsing, L., Ware, K. 1., & Sutherland, L. (1961). Jimmy Potter buys a lollipop. Webster.

Chicago Style (17th ed.) Citation

Hellsing, Lennart, Kay 1916 Ware, and Lucill Sutherland. Jimmy Potter Buys a Lollipop. St. Louis: Webster, 1961.

MLA (9th ed.) Citation

Hellsing, Lennart, et al. Jimmy Potter Buys a Lollipop. Webster, 1961.