000 00484nam a2200181 4500
001 14056/71
005 20130515014606.0
008 111112s9999 xx 000 0 und d
020 _ahard cover
082 0 0 _a621. 385 atk
100 1 _a"atkinson, j . "
245 1 0 _atelephony:a detailed exposition of the telephone exchange...:
_bvolume ii/
_c j.. atkinson
250 _a1 ed.
260 _auk :
_bpitman
_c1950.
300 _a"xii, 873p.;
_c25 cm."
504 _a
650 0 _a
_x
999 _c22941
_d22941