000 00414nam a2200145Ia 4500
008 190328s9999||||xx |||||||||||||| ||und||
040 _aNITIL
_cNITIL
082 _221st
_a503
_bB186S
100 _aBalkrishna (Ed)
245 0 _aSugam vigyan vishwakosh
_c Balkrishna
260 _aDelhi
_bRavindra Press
_c1990
300 _a106p.
650 _aScience; Encyclopedias and dictionaries; Reference books
942 _cBKS
999 _c36400
_d36400