PURIS MARTIN. (1999). COMEBACK- HOW SEVEN STRAIGHT-SHOOTING CEO`S TURNED AROUND TROBULED COMPANIES. TIMES BUSINESS.
Chicago-viite (17. p.)PURIS MARTIN. COMEBACK- HOW SEVEN STRAIGHT-SHOOTING CEO`S TURNED AROUND TROBULED COMPANIES. NEW YORK: TIMES BUSINESS, 1999.
MLA-viite (9. p.)PURIS MARTIN. COMEBACK- HOW SEVEN STRAIGHT-SHOOTING CEO`S TURNED AROUND TROBULED COMPANIES. TIMES BUSINESS, 1999.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.