000 00315nam a2200121Ia 4500
008 220201s1990 xx 000 0 eng d
041 _aENG
100 _aKESHAV, M L
245 0 _aWORLD OF SCIENCE ACTIONS AND INTERACT
260 _aLONDON
_bTHAMES AND HUDSON PUBLISHING COMPANY
_c1990
300 _a-
942 _2ddc
999 _c57095
_d57095