NICHOLSON T. (1998). DEAR BOSS 52 WAYS TO DEVELOPMENT. EXCEL BOOKS.
Chicago-čujuhus (17. p.)NICHOLSON T. DEAR BOSS 52 WAYS TO DEVELOPMENT. EXCEL BOOKS, 1998.
MLA-čujuhus (9. p.)NICHOLSON T. DEAR BOSS 52 WAYS TO DEVELOPMENT. EXCEL BOOKS, 1998.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.