Murray, J. J., & Fox, B. R. (1991). A Historical, Rarity, Value Guide Fisher-Price: 1931-1963 ; Fisher Price inc. Toys. Books Americana.
Lua i Stíl Chicago (17ú heag.)Murray, John J., agus Bruce R. Fox. A Historical, Rarity, Value Guide Fisher-Price: 1931-1963 ; Fisher Price Inc. Toys. Florence: Books Americana, 1991.
Lua MLA (8ú heag.)Murray, John J., agus Bruce R. Fox. A Historical, Rarity, Value Guide Fisher-Price: 1931-1963 ; Fisher Price Inc. Toys. Books Americana, 1991.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.