Clemens Sean. The everything kids math puzzles book. Adams media.
Lua i Stíl Chicago (17ú heag.)Clemens Sean. The Everything Kids Math Puzzles Book. Adams media.
Lua MLA (9ú heag.)Clemens Sean. The Everything Kids Math Puzzles Book. Adams media.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.