658.838672522  / N213a <br/>
       Appraisal of demand for Oxygen, Dissolved Acetylene, Welding Electrodes, Gas Cylinders 
 / New Delhi.National Council of Applied Economic Research 
 .- New Delhi: National Council Of Applied Economics Research,  1961 
 .- 116p. 
<br/><u>Subject Headings:</u> <br/>Oxygen;<br/>Dissolved Acetylene;<br/>Welding Electrodes;<br/>Gas Cylinders;
<br><U>Copy Details:</u><br> Acc. No.: <b>A285</b>, Full Call No.: 658.838672522 N213a,   Item type:  Books , Location: COMPACT STORAGE (BASEMENT), <br><b>------------------------- --------------------- ------ --------- ------- ------- --------- -------- </b><br>