Authors Paul A Schweizer and Martin Simons    Published in 1998   Published by Airlife Publications For copyright reasons, only a sample of this book is…

Author John E Simpson    Published in 1994   Published by Cambridge University Press For copyright reasons, only a sample of this book is available.

Author Ann C Edmunds (Welch)   Published in 1939   Published by Country Life Ltd, London

Author Charles H Gibbs-Smith    Published in 1962    Published by HMSO, London For copyright reasons, only a sample of this book is available.

Author Bill Scull     Published in 1979    Published by Pelham Books, London

Author Terence Horsley     Published in 1944   Published by Eyre & Spottiswoode, London

Wolf Hirth  (trans Naomi Heron-Maxwell)   Published in 1938

Author Mike Bird, illustrations Peter Fuller    Published in 2000.  Published by Platypus Publications

Author Pat Jackson   Published in 1997   Published by Truleigh Press

Authot John Simpson   Published in 1961   Published by Stanley Paul, London