Fine,Benjamin. (1964). Stretching their minds: The exciting new approach to the education... E.P.DUTTON.
Lua i Stíl Chicago (17ú heag.)Fine,Benjamin. Stretching Their Minds: The Exciting New Approach to the Education... Newyork: E.P.DUTTON, 1964.
Lua MLA (9ú heag.)Fine,Benjamin. Stretching Their Minds: The Exciting New Approach to the Education... E.P.DUTTON, 1964.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.