000 00518 a2200253 4500
001 92962
020 _a0
041 _aeng
080 _a681.6 Kei
245 _aRecorder survey : recording surfaces and marking methods
250 _a
260 _awashington
260 _bU.S. Department of Commerce,
260 _c1959
300 _aiv,41 p.
300 _c25 cm
490 _a
100 _aKeinath, George
700 _a
650 _a
650 _aRecording instruments
942 _cBK
942 _2UDC
999 _c39234
_d39234