O'Brien, R. (1990). The Story of American Toys: From the puritans to the present. New Cavendish Books.
Lua i Stíl Chicago (17ú heag.)O'Brien, Richard. The Story of American Toys: From the Puritans to the Present. London: New Cavendish Books, 1990.
Lua MLA (8ú heag.)O'Brien, Richard. The Story of American Toys: From the Puritans to the Present. New Cavendish Books, 1990.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.