000 00255nam a2200097Ia 4500
008 200508s9999||||xx |||||||||||||| ||und||
082 _aE-503
245 0 _aEncyclopaedia of science and technology. Vol.8.
260 _bMcGraw Hill Pub.
_c1971
300 _a802p.
999 _c61994
_d61994