@book{richmond__2000, title = {The" thinking" in systems thinking: {Seven} essential skills}, shorttitle = {The" thinking" in systems thinking}, publisher = {Pegasus Communications}, author = {Richmond, Barry}, year = {2000}, note = {KerkoCite.ItemAlsoKnownAs: 2339240:4KMEV2W3 2405685:9WLQREGL}, }