000 00501nam a22001817a 4500
003 BD-DhUL
005 20170524160825.0
008 170524b1971 u ||||| |||| 00| 0 eng d
040 _cBD-DhUL
_dBD-DhUL
082 _a025.4
_bLIC
110 _aLibrary of Congress
245 _aClassification. Class T: technology
250 _a5th.
260 _aWashington
_bLibrary of Congress
_c1971
300 _ax p., 266 l., 267-370 p.;
_c26 cm.
650 _xClassification - Technology.
942 _2ddc
_cBK
999 _c203029
_d203029