TY  - BOOK
TI  - Invisible World: the digestive system 
SN  - 9788178626819
AV  - QP 145 .D572
U1  - REF 612.320  
CY  - New Delhi :   
PB  - Sterling Press.
N1  - Basic ed. students
N2  - 1. Gastrointestinal system--Physiology--Juvenile literature.  2. Digestive organs--Physiology--Juvenile literature.  3. Digestive system.  4. The Invisible world.
ER  -