National power grids and extra high voltage systems in the ESCAP region 

 - Bangkok  UN         1975 
 - 80p  cm. 
<br/><br/><label>Standard No.: </label>152437 
<br/><br/><label>Source: </label> Reference Collections 
<br/><br/><label>Dewey Class. No.: </label>"X9(D66).4.N7, L5/UN"