Intuitive thinking as a spiritual path : A Philosophy of freedom / Rudolf Steiner

 Steiner, Rudolf;

Barrington : Anthroposophic Press , 1995

Work and Play in Early Childhood / Freya Jaffke; trnslate by Christian von Arnim

 Jaffke, Freya; Arnim, Christian von;

Netherlands : Anthroposophic Press , 2000