APA (7th ed.) Citation

Folmsbee, B. (1971). A little history of the horn-book. Horn Book.

Chicago Style (17th ed.) Citation

Folmsbee, Beulah. A Little History of the Horn-book. Boston: Horn Book, 1971.

MLA (8th ed.) Citation

Folmsbee, Beulah. A Little History of the Horn-book. Horn Book, 1971.