Witty, P. (1953). How to become a better reader. Science Research Associates.
Lua i Stíl Chicago (17ú heag.)Witty, Paul. How to Become a Better Reader. Chicago: Science Research Associates, 1953.
Lua MLA (8ú heag.)Witty, Paul. How to Become a Better Reader. Science Research Associates, 1953.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.