000 00313 a2200097 4500
020 _a9241571373
920 _a92-4-157137-3
245 0 _aElectromagnetic Fields (300Hz to 300GHz) /
_c.
_n1 t.
710 2 _aWorld Health Organization.
_eWydawca
_4pbl
260 _aGeneva :
_bWorld Health Organization,
_c1993.
300 _a290 s.:
_bil.;
_c21 cm.
999 _c744
_d744