Narayana P L <br/><br/>
Implications of high, medium and low technologies 
Narayana P L; Subrahmanyam N 
 -  1973 
<br/><br/><label>Standard No.: </label>128920 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>X:327.2'N8, L3