Report of the workshoop on organisational and Technical measures for the Develoopment of Building Materials  " Moscow, USSR, 1968" 

 - New  York United Nations       1970 
 - 130 p  cm. 
<br/><br/><label>Standard No.: </label>151203 
<br/><br/><label>Source: </label> Reference Collections 
<br/><br/><label>Dewey Class. No.: </label>"X9(D3)p1, N68, K8/UN"