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MLA Citation
Bernhard Pörksen, editor. Schlüsselwerke des Konstruktivismus. Wiesbaden, Germany : Springer VS, 2015. http://access.bl.uk/ark:/81055/vdc_100077547256.0x000001
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Bernhard Pörksen, editor. Schlüsselwerke des Konstruktivismus. Wiesbaden, Germany : Springer VS, 2015. http://access.bl.uk/ark:/81055/vdc_100077547256.0x000001