RYAN, M. (2012). Culture. McGraw-Hill Book Company.
Chicago-čujuhus (17. p.)RYAN, Michael. Culture. McGraw-Hill Book Company, 2012.
MLA-čujuhus (9. p.)RYAN, Michael. Culture. McGraw-Hill Book Company, 2012.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.