Publisher: Schrader-Motor-Chronik
Masthead: NSU Quickly N bis Quick 50
ISBN: 3-613-87153-X
Note: About my state of knowledge won´t this book offered no more. May be it will be relaunch.

Publisher: Walter Podszun
Masthead: Die Deutschen Mopeds der Wirtschaftswunderzeit
ISBN: 3-923448-31-7
Note: This book should have every moped fan, regardless of which trade mark.141 pages with pictures almost of 100 moped manufacturer.