Kirk, R. E. (1999). Statistics: An introduction. Harcourt Brace College.
Chicago-čujuhus (17. p.)Kirk, Roger E. Statistics: An Introduction. Fortworth: Harcourt Brace College, 1999.
MLA-čujuhus (9. p.)Kirk, Roger E. Statistics: An Introduction. Harcourt Brace College, 1999.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.