000 00338nam a2200145Ia 4500
005 20240814115824.0
008 240813s9999||||xx |||||||||||||| ||und||
082 _a500 HAS
100 _aHaslett, A.W.
245 0 _aScience news
260 _aLondon
_bPenguin Books
_c1952
300 _a142p, 21 ill
650 _aMathematics
942 _cBK
999 _c2847
_d2847