https://pictures.abebooks.com/isbn/9781107074422-us.jpg Learning by Expanding@An Activity-Theoretical Approach to Developmental Research@By: Yrjö Engeström@Publisher: @Cambridge University Press@Print ISBN: 9781107074422, 1107074428@eText ISBN: 9781316189740, 1316189740@Edition: 2nd@Format: EPUB@Available from $ 29.00 USD@SKU: 9781316189740 Download now: https://ouo.io/xprU1o