Venneri, A. (2005). Balls!: 6 rules for winning today's business game. Hoboken, N.J.: John Wiley & Sons, Inc..
Παραπομπή Chicago StyleVenneri, Alexi. Balls!: 6 Rules for Winning Today's Business Game. Hoboken, N.J.: John Wiley & Sons, Inc., 2005.
Παραπομπή MLAVenneri, Alexi. Balls!: 6 Rules for Winning Today's Business Game. Hoboken, N.J.: John Wiley & Sons, Inc., 2005.
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