Basu, R.N. <br/><br/>
The Eradication of small pos from India  R.N. Basu, Z. JezekN.A. Ward. 

 - New Delhi  World Health Organization  1979 
 - xv, 346p., ill. 23cm. 
<br/><br/><label>Dewey Class. No.: </label>614.521,  / B31E