London, New York, Sydney, Toronto: Hamlyn , 1979

London - New York - Sydney - Toronto: Hamlyn 1971

London - New York - Sydney - Toronto: Hamlyn 1971

London; New York; Sydney; Toronto: Hamlyn 1979

1976

Granada Publishing London Toronto Sydney New York

London, Toronto, Sydney, New York: Granada Publishing

London, Toronto, Sydney, New York: Granada Publishing Limited

London, New York, Sydney, Toronto, Wellington, TAVISTOCK PUBLIGATIONS

London/New York/Sydney/Toronto, Hamlyn 1969

London, Toronto, Sydney New York - Paladin, Granada Publishing

London, New York, Sydney, Tokyo, Toronto, Singapore, Dublin, Simon & Schuster 2001.

Prentice Hall München New York London Toronto Sydney Singapur Mexiko

New York, London, Sydney, Toronto : Praeger Publishers Inc

New York, London, Sydney, Toronto: Praeger Publishers Inc

1995

München ; London ; Mexiko City ; New York ; Singapur ; Sydney ; Toronto : Prentice-Hall-Verl.