000 00309nam a22001217a 4500
008 240911b |||||||| |||| 00| 0 eng d
040 _aNational Science Library
_cNational Science Library
080 _aD 001.816
_bK2
245 _aTechnical writing
260 _c1962
300 _a434p.
942 _2udc
_cREF
999 _c66933
_d66933