Author – The British Gliding Association   Published in 2002    Publisher A&C Black, London For copyright reasons, only a sample of this book is available.

Authors Percival and Mat White    Published in 1931   Published by Whittlesey House, New York

Second edition Author Derek Piggottt   Published in 1998     Published by A&C Black, London For copyright reasons, only a sample of this book is available

Author AC Douglas (Welch)   Published in 1947   Published by John Murray, London For copyright reasons, onlay a sample of this book is available

Author “String-Bag”  (T Horseley) Published in 1947   Published by Oxford University Press, London

Author Malcolm Logan    Published in 1930   Published by Kiran Publications, New Delhi

Author Adrian Morgan    Published in 1990   Published by Osprey Publishing, London

Author Ann Welch    Published 1976    Published by EP Publishing For copyright reasons, only a sample of this book is available

Authors Ann Welch and Gabor Denes    Published in 1960    Published by Faber & Faber, London

Author Derek Piggottt   Published in 1978     Published by A&C Black, London For copyright reasons, only a sample of this book is available