Ritzer, G. Essentials of Sociology (3th.). S.Sage.
Chicago-čujuhus (17. p.)Ritzer, George. Essentials of Sociology. 3th. S.Sage.
MLA-čujuhus (9. p.)Ritzer, George. Essentials of Sociology. 3th. S.Sage.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.