Proceedings.  Proceedings. 

 - 11, 1972 
 - Amsterdam  Elsevier  1973 
 - viii, 319p.: ill. 
 - (Ciba foundation Symposium new series no. 9). .
<br/><br/><label>ISBN: </label>90-21940108. 
<br/><br/><label>Dewey Class. No.: </label>612.39  / S99P