Wurman, Richard Saul. The nature of recreation:a handbook in honor of frederrick law omisted,using examples from his work / by Richard Saul Wurman,Alan Levy and Joel Katz. - 1st ed / - Cambridge : The MIT Press. - 75p ; ISBN: 0-262-73034-0 Subjects--Topical Terms: Medicine Dewey Class. No.: L:572 / L2