(2003). How to design and report experiments / Andy Field, Graham Hole.
Chicago-čujuhus (17. p.)How to Design and Report Experiments / Andy Field, Graham Hole. 2003.
MLA-čujuhus (9. p.)How to Design and Report Experiments / Andy Field, Graham Hole. 2003.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.