Consolidation of holding methods of problems 

 - New  Delhi Planning Commission       1957 
 - "iii, 123p"  cm. 
<br/><br/> Appendix: 102-123P 
<br/><br/><label>Standard No.: </label>187503 
<br/><br/><label>Source: </label> Reference Collections 
<br/><br/><label>Dewey Class. No.: </label>"X9(J):(Z2,Z11,3).N57, J7/GD"