Rai, Ramesh Chandra . <br/><br/>
Metriculation Hygiene /  Textual Documents 
Ramesh Chandra Rai. 
 - 1st ed. / 
 - Calcutta :  Ramesh Chandra Rai ,  Nd. 
 - 314p. :  ill ;  20cm . 
<br/><br/><label>Subjects--Index Terms: </label>Hygiene G-Technology 
<br/><br/><label>Dewey Class. No.: </label>63  / R 13 M