Hannas, L. (1981). The jigsaw Book: Celebrating two centuries of jigsaw-puzzling round the world. The Dial Press.
Lua i Stíl Chicago (17ú heag.)Hannas, Linda. The Jigsaw Book: Celebrating Two Centuries of Jigsaw-puzzling Round the World. New York: The Dial Press, 1981.
Lua MLA (8ú heag.)Hannas, Linda. The Jigsaw Book: Celebrating Two Centuries of Jigsaw-puzzling Round the World. The Dial Press, 1981.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.