TY  - GEN
AU  - Ratnasiri , Nalini B.
AU  - Rathnasooriya , W.D
AU  - Chandrananda , W. P. N.
AU  - Hewavisenthi , S.
AU  - Nizam , B.W.
TI  - Zoology - PSUIIZ2: Animal physiology block 1
U1  - 571.1 
PY  - 1986///
CY  - Sri Lanka
PB  - Open university of sri lanka
KW  - ZOOLOGY ANIMAL PHYSIOLOGY
ER  -