TY  - BOOK
AU  - Unesco Dooth, 
TI  - Oct-79
U1  - 500.05 
PY  - 1900///
CY  - Thiruvananthapuram
PB  - Govt Of India Central Hindi Direct
KW  - GENERAL STACK
KW  - Natural sciences & mathematics
KW  - Generalia
ER  -