TY  - BOOK
AU  - "Punjab Text Book Board"
TI  - GENERAL SCIENCE 4
SN  - 0000000000000
U1  - 500 
PY  - 2021///
CY  - Pakisan
PB  - HEINEMANN,P.T.B EMPALES WELFARE SOCEITY LAHORE,PCTB
ER  -