(1956). The essentials of educational statistics.
Chicago-čujuhus (17. p.)The Essentials of Educational Statistics. 1956.
MLA-čujuhus (9. p.)The Essentials of Educational Statistics. 1956.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.