PARKINSON C NORTHCOTE. (1989). 109 WAYS OF GETTING TO THE TOP: IDEAS OF THE WORLDS. VISION BOOKS PVT. LTD.
Chicago-viite (17. p.)PARKINSON C NORTHCOTE. 109 WAYS OF GETTING TO THE TOP: IDEAS OF THE WORLDS. NEW DELHI BOMBAY: VISION BOOKS PVT. LTD, 1989.
MLA-viite (9. p.)PARKINSON C NORTHCOTE. 109 WAYS OF GETTING TO THE TOP: IDEAS OF THE WORLDS. VISION BOOKS PVT. LTD, 1989.
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