000 00350nam a2200145Ia 4500
008 230917s9999||||xx |||||||||||||| ||und||
040 _e145519
_aMAIN
041 _aEnglish
082 _a363.7 B54P
100 _aBishat, Sujata
245 0 _aParyavaran shiksha
260 _aNew Delhi
_bTaxshila Prakashan
_c1991
300 _a119 p.
942 _cBK
999 _c112898
_d112898