University of Manchester, University of Manchester. Department of Education, & Manchester University Press. (1969). Research in education. Manchester University Press.
Lua i Stíl Chicago (17ú heag.)University of Manchester, University of Manchester. Department of Education, agus Manchester University Press. Research in Education. Manchester, England: Manchester University Press, 1969.
Lua MLA (9ú heag.)University of Manchester, et al. Research in Education. Manchester University Press, 1969.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.