Duchacek Ivo  D, <br/><br/>
Discord and harmony 
by Ivo  D Duchacek 
 - New York:  Holt rinehart and winston inc. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Discord and harmony
<br/><br/><label>Dewey Class. No.: </label>909 DUC.D