Spiegel Murray. (2014). Statistics. McGraw Hill Education.
Chicago-čujuhus (17. p.)Spiegel Murray. Statistics. New York: McGraw Hill Education, 2014.
MLA-čujuhus (9. p.)Spiegel Murray. Statistics. McGraw Hill Education, 2014.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.