Tortora, Gerard J. <br/><br/>
Microbiology  an introduction 
Gerard J. Tortora 
 - 9th ed. 
 - New Delhi  Pearson Education  2011 
 - xxvi, 958p. 
<br/><br/><label>ISBN: </label>978-81-317-2232-9 
<br/><br/><label>Dewey Class. No.: </label>579  / TOR