000 00246nam a2200097 4500
245 _aScience happenings
_cMichael Holt
100 _aHolt, Michael
260 _aLondon
_bGunn and co.
_c1969
300 _a6pts.:col.ill. ; 29cm.
082 _a502.02
_bHOL
999 _c18772
_d18772