000 00307nam a2200121Ia 4500
008 240407s9999 xx 000 0 und d
020 _a9780140136289
100 _aGordon, J E
245 0 _aStructures
_bor Why things don't fall down
260 _aLondaon
_bPenguin Books
_c1978
300 _a395p.
942 _cBK
999 _c216
_d216