WILSON LARRY. (1987). CHANGING THE GAME: THE NEW WAY TO SELL. SIMON & SCHUSTER INC.
Lua i Stíl Chicago (17ú heag.)WILSON LARRY. CHANGING THE GAME: THE NEW WAY TO SELL. NEW YORK: SIMON & SCHUSTER INC, 1987.
Lua MLA (9ú heag.)WILSON LARRY. CHANGING THE GAME: THE NEW WAY TO SELL. SIMON & SCHUSTER INC, 1987.
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