Cleaning out the aquarium. Children's House at the Fröbelseminar in Hamburg, 1928 - T. Müller, R. Schneider, Lehrmaterialien 1913-1935. Möbel und Architektur. Techning Meterials 1913-1935. Furniture and Architecture, München, Prestel Verlag, 2002, p.85

Category: Montessori schools