000 00234 a2200085 4500
245 0 _aEngineer's Relay Handbook /
_c.
250 _a2 edition.
710 2 _aHayden Book.
_eWydawca
_4pbl
260 _aNew York :
_bHayden Book,
_c1969.
300 _aXII, 355 s.;
_c24 cm.
999 _c2531
_d2531