TY  - BOOK
AU  - Hariharakrishnan, A.
AU  - Pareed,P.V.
TI  - Text book of Mathematics for Polytechnic and other Proffessional Courses / 
U1  - 510 
PY  - 1966///
CY  - Trichur : 
PB  - Pulikkottil Publishing House , 
ER  -