GATES BILL. (1999). BUSINESS @ THE SPEED OF THOUGHT. PENGUIN BOOKS INDIA (P) LTD.
Chicago-viite (17. p.)GATES BILL. BUSINESS @ THE SPEED OF THOUGHT. LONDON: PENGUIN BOOKS INDIA (P) LTD, 1999.
MLA-viite (9. p.)GATES BILL. BUSINESS @ THE SPEED OF THOUGHT. PENGUIN BOOKS INDIA (P) LTD, 1999.
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