Proceedings :/  7th 
Kerala Science Congress (  Palakkad) ; edited by P. K. Iyengar 
 - Triruvanamthapuram :  Govt. Press ,  28 
 - 440 p. :  ill. ;  28 cm. 
<br/><br/>Index present 
<br/><br/><label>Dewey Class. No.: </label>506.35