Add this copy of Understanding Systems: A Grand Challenge For 21st to cart. $45.09, new condition, Sold by Ingram Customer Returns Center rated 5.0 out of 5 stars, ships from NV, USA, published 2017 by World Scientific Publishing Co Pte Ltd.
Add this copy of Understanding Systems: A Grand Challenge For 21st to cart. $64.43, new condition, Sold by Ria Christie Books rated 4.0 out of 5 stars, ships from Uxbridge, MIDDLESEX, UNITED KINGDOM, published 2017 by World Scientific Publishing Co Pte Ltd.
