TY  - BOOK
AU  - Naseer Ahmad Qureshi
AU  - Muhammad Anwar Bhatti
AU  - Abdul Smad
AU  - Dr. Mohammad Rafi
TI  - Science 4
U1  - 372.35 
PY  - 2000///
CY  - Lahore
PB  - Globe
KW  - Science-Study and teaching
N1  - Punjab Textbook Board, Lahore
ER  -