Ghosh, R.N. <br/><br/>
Manual of Social and Preventive Medicine 

 - Calcutta  Vijoya Publishing House  1980 
 - 632 
<br/><br/><label>Publisher. No.: </label> Specialized Book Service 
<br/><br/><label>Subjects--Personal Names: </label> Environmental Science 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental Science