1.
On Purposeful Systems An Interdisciplinary Analysis of Individual And Social Behavior As a S...
by Ackoff, Russell L., Emery, ...
ISBN: 9780202307985
List Price: $29.95
2.
Search Conference A Powerful Method for Planning Organizational Change and Community Action
by Emery, Merrelyn, Purser, Ro...
ISBN: 9780787901929
List Price: $50.00