Creative play series
Batsford
by Ernst Röttger, Dieter Klante [and] Friedrich Salzmann ; [translated from the German]
Batsford, 1970 Creative play series 9
Available at 3 libraries
by Rolf Hartung
Batsford 1966 Creative play series 7
Available at 9 libraries
Ernst Rottger
Batsford 1963 Creative play series no. 3
Available at 12 libraries
Batsford 1961 Creative play series no. 2
Available at 5 libraries