John, R. S. (2011). The 8 Traits successful people have in common. Embassy book.
Chicago-čujuhus (17. p.)John, Richard St. The 8 Traits Successful People Have in Common. Mumbai: Embassy book, 2011.
MLA-čujuhus (9. p.)John, Richard St. The 8 Traits Successful People Have in Common. Embassy book, 2011.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.