446907 Crocker, A. C. (1974). Statistics for the teacher. Windsor, Berk : National Foundation for Educational Research.
Lua i Stíl Chicago (17ú heag.)446907 Crocker, Anthony Charles. Statistics for the Teacher. Windsor, Berk : National Foundation for Educational Research, 1974.
Lua MLA (9ú heag.)446907 Crocker, Anthony Charles. Statistics for the Teacher. Windsor, Berk : National Foundation for Educational Research, 1974.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.