00354nam a2200109Ia 4500008004100000100002600041245004000067260005200107300001400159650005400173999001700227140602s9999    xx            000 0 und d1 aGUDSCHINSKY, Sarah C.10aHow to Learn an Unwritten Language.  bHolt, New York,aRinehart and Winston : c1967.  a64 pages; 0aAPPRENTISSAGE DE LANGUE - Principes et Techniques  c63885d63859