000 00234 a2200085 4500
245 0 _aTelecommunication Engineering /
_cIzsak M..
250 _a2 edition.
710 2 _aBudavox.
_eWydawca
_4pbl
260 _aBudapest :
_bBudavox,
_c1967.
300 _a1009 s.;
_c25 cm.
999 _c12626
_d12626