Schott Flötenzirkus Vol.2, Method for Recorder, Volume 2 - for children from 5 years, By Rainer Butz and Hans Magolt, Arranged for 1 to 2 soprano recorders, ISBN 9783795756499, ISMN 9790001136105, Format: 27.5 x 18.5 cm, Spiral binding, 80 Pages, In German