De wonderlijke ballonvaart van twee Veluwse jongens

From the year :	196?      Publisher :  De Kern, Baarn
Author(s) :	Hans Metman
ISBN-number :	none
Remark :	This book is probably from the sixties because of a dike that's mentioned in it, it was the start of reclamation of the "IJsselmeer".
Contents :	Two boys, Aart and Roel, from a town on the "Veluwe" get permission to sit in a gasballoon before it takes of. The ballon brakes free and this is the start of an exiting adventure.