Yule, G. U. (1997). An int.to the theory ofstatistics (1st edition.). Univarsal.
Chicago-čujuhus (17. p.)Yule, G U. An Int.to the Theory Ofstatistics. 1st edition. New Delhi: Univarsal, 1997.
MLA-čujuhus (9. p.)Yule, G U. An Int.to the Theory Ofstatistics. 1st edition. Univarsal, 1997.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.