Clegg, F. (1982). Simple statistics: A course book for the social sciences. Cambridge University Press.
Lua i Stíl Chicago (17ú heag.)Clegg, Frances. Simple Statistics: A Course Book for the Social Sciences. [Cambridge [Cambridgeshire ; New York: Cambridge University Press, 1982.
Lua MLA (9ú heag.)Clegg, Frances. Simple Statistics: A Course Book for the Social Sciences. Cambridge University Press, 1982.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.