RIES AL. (1986). POSITIONING: A BATTLE FOR YOUR MIND. WARNER BOOK.
Chicago-čujuhus (17. p.)RIES AL. POSITIONING: A BATTLE FOR YOUR MIND. NEW YORK: WARNER BOOK, 1986.
MLA-čujuhus (9. p.)RIES AL. POSITIONING: A BATTLE FOR YOUR MIND. WARNER BOOK, 1986.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.