000 00328nam a22001337a 4500
040 _cPK-LaCSN
082 _aTR 500
_bCIT-S
110 _aThe City School
245 _aTCS SCience Level 1
260 _aLahore;
_bThe City School;
_c2022.
300 _3text;
_a91 pages;
_billustration;
_c27 cm.
942 _2ddc
_cTR
999 _c822605
_d822582