Anvil, Christopher <br/><br/>
Positive feedback & gadjettukalum pravanathakalum / 
Christopher Anvil; translated by Arun P. Mandangarli 
 - Thrissur :  Kerala Sastra Sahitya Parishad,  2012. 
<br/><br/><br/>In Malayalam 
<br/><br/><label>Subjects--Index Terms: </label>Science