APA (7e ed.) Bronvermelding

PARKINSON C NORTHCOTE. (1989). 109 WAYS OF GETTING TO THE TOP: IDEAS OF THE WORLDS. VISION BOOKS PVT. LTD.

Chicago (17e ed.) Bronvermelding

PARKINSON C NORTHCOTE. 109 WAYS OF GETTING TO THE TOP: IDEAS OF THE WORLDS. NEW DELHI BOMBAY: VISION BOOKS PVT. LTD, 1989.

MLA (9e ed.) Bronvermelding

PARKINSON C NORTHCOTE. 109 WAYS OF GETTING TO THE TOP: IDEAS OF THE WORLDS. VISION BOOKS PVT. LTD, 1989.