Koch Richard. The 80/20 Principle

London: Nicholas Brealey Publishing Limited, 1998. — 313 p. — ISBN: 1-85788-167-2 HB ISBN: 1-85788-168-0.Although the author expresses a view on the likely future performance of certain invest- ment instruments, this should not be taken as an incitement to deal in any of them, nor is it to be regarded as investment advice. Each individual should consider their investment position in relation to their own circumstances with the benefit of professional advice. No responsibility can be assumed by either the author or the publisher for investment or any other decisions taken on the basis of views expressed in this book.