Jethwa, J. L. <br/><br/>
Behaviour of rocks under shear-instrumentation / 
J. L. Jethwa and Dr. B. Singh 
 - Dhanbad :  Central Mining Research Station,  1967 
 - 26 p. :  ill. ;  21 cm. 
 - Reference Central Mining Research Station-M24/43 .
<br/><br/><label>Dewey Class. No.: </label>622.(54)