The development potential of dimension stone /  
Department of Econ omic and Social Affairs. 
 - New York :    United Nations,    1976. 
 - viii, 95 p.  :    ill. ;    28 cm. 
<br/><br/>  "United Nations publication. Sales no. E.76.II.A.4." 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Building stones.