Author John Kukuski   Published in 1952    Published by Sir Isaac Pitman & Sons, London

Author Ray C Staffford-Allen    Published in 1962    Published by Oliver & Boyd, Edinburgh and London

Anonymous author. Published in 1937.  Publisher unknown.

Second edition Author Derek Piggottt   Published in 1988     Published by A&C Black, London For copyright reasons, only a sample of this book is…

Author Derek Piggottt   Published in 1977     Published by A&C Black, London For copyright reasons, only a sample of this book is available

Author David Millett   Published in 1994   Published by Newton Publishers, Swindon

Author Philip Wills    Published in 1961    Published by Newnes, London

Author George Moffat   Published in 1974   Published by The Soaring Press, Los Altos, Ca, USA

Author Helena Smahelova (trans Marie Burg)   Published in 1966  Published by University of London Press

Author Martin Simons    Published in 2004    Published by EQIP For copyright reasons, only a sample of this book is available.