Petryanov, I <br/><br/>
Sansar ka sabase anaukha dravya 
I. Petryanov ; translated by Naveen Mehara 
 - Delhi  Bharat Gyan Vigyan Prakashan  1995 
 - 107p.:  ill.  22cm. 
<br/><br/><label>Dewey Class. No.: </label>H  / 553.7 PET