DRILLING exercises 

 - Stockholm  Liber Laromedel  1980 
 - 20 p. 
<br/><br/><label>ISBN: </label>91-40-11112-1 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Drilling
<br/><br/><label>Dewey Class. No.: </label>621.952  / DRI