000 00320nam a2200121Ia 4500
008 220201s1987 xx 000 0 eng d
082 _a600
_bReference OB
100 _aReference obotics
245 0 _aDepartment of science and technology
260 _bOxford University Press
_aDelhi
_c1987
300 _a302
942 _2ddc
999 _c6575
_d6575