Grundmann, Helge E. <br/><br/>
Some implications of the concept of effective protection 

 - Dar es Salaam  University of Dar es Salaam  1968 
 - 13p.  32cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Tarrif
<br/><br/><label>LC Class. No.: </label>EAF QTO HC12 No.68.19