[Proceedings] / 
 Design of environmental information systems 
editor: Rolf A. Deininger. 
 - Ann Arbor, MI :  Ann Arbor Science Pub.,  [1974] 
<br/><br/>Includes bibliographies. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Pollution.<br/>Environmental protection -- Information services.--Environmental protection -- Information services.