000 00368nam a2200133Ia 4500
008 211109s9999||||xx |||||||||||||| ||und||
082 _a500
_bGER-K
100 _aGerrard, Michael
245 0 _aKnight Book of Science Puzzles
260 _bNATIONAL BOOKSTALL
_aKottayam
630 _xGENERAL STACK
650 _aNATURAL SCIENCE & MATHAMATICS
_vGeneralia
942 _cBOOK
999 _c81504
_d81504