TY  - BOOK
AU  - NCERT
TI  - Economics : :Textbook for Class IX 
SN  - 81-7450-517-2
U1  - 330 N213E 
PY  - 2006///
CY  - New Delhi
PB  - :NCERT
KW  -  Economics -textbook-class 9th
UR  - https://ncert.nic.in/textbook.php?iess2=ps-4
ER  -