Clegg, F. (1990). Simple statistics: A course book for the social sciences. Cambridge University Press.
Dyfyniad Arddull ChicagoClegg, Frances. Simple Statistics: A Course Book for the Social Sciences. London: Cambridge University Press, 1990.
Dyfyniad MLAClegg, Frances. Simple Statistics: A Course Book for the Social Sciences. Cambridge University Press, 1990.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.