Chukwurrah, C. C. <br/><br/>
Basic borehole technology and practice 
C. C. Chukwurrah 
 - Ekpoma  olulu  1992 
 - vii, 84p. :ill.; 
<br/><br/><label>ISBN: </label>978201088 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Well digging and boring
<br/><br/><label>LC Class. No.: </label>TD412.C4 1992