Jorgensen, Carolyn. <br/><br/>
Mastering 123. 

 - 1 
 - New Delhi  BPB Publications  1986 
 - xxiii,466 
<br/><br/><label>ISBN: </label>8170290724 
<br/><br/><label>Subjects--Topical Terms: </label><br/>None
<br/><br/><label>Dewey Class. No.: </label>005.3 JORC