Lal,Pranay <br/><br/>
Invisible Empire:The Natural History of Viruses/ 
by Pranay Lal 
 - Haryana  :Penguin Random House  ,2021 
 - 278p. 
<br/><br/><label>ISBN: </label>978-0-670-09576-6 
<br/><br/><label>Dewey Class. No.: </label>579.2LAL/I