Change-laboratory.png (476 × 382 pixels, file size: 36 KB, MIME type: image/png)
The change lab set-up (Engeström & Virkkunnen, 1996)
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|current||19:48, 10 July 2007||476 × 382 (36 KB)||Daniel K. Schneider||The change lab set-up (Engeström & Virkkunnen, 1996)|
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