TY  - BOOK
AU  - Guarder, Joston = Ú¯Ø§Ø±ÚØ±Ø Ø¬ÙØ³Ù¹ÛÙ
TI  - Sofi ki duniya = Ø³ÙÙÛ Ú©Û Ø¯ÙÛØ§
U1  - 891.4393 
PY  - 1998///
CY  - Lahore
PB  - Urdu Science Board
ER  -