Schott Klangstraße 1, Coursebook for Early Musical Education, Sing with me, Dance with me, Play with me - elementary music making for children from 4 years of age, Children's booklet, By Irmhild Ritter and Christa Schäfer, ISMN 9790001114479, publisher's no. ED 8531 , Format: 21 x 29.4 cm, 66 Pages, In German language