000 00525nam a22001817a 4500
008 230315b |||||||| |||| 00| 0 eng d
040 _aNational Science Library
_cNational Science Library
080 _aD 03(026)
_bJ9;M9.1
245 _aWalford's guide to reference material
_bScience & technology
250 _a5th ed.
260 _aLondon:
_bThe Library Association,
_c1989
300 _ax, 791p.
500 _aVol. 1
650 _aScience
653 _aTechnology
700 _aWalford, A J (Ed.)
942 _2udc
_cREF
999 _c9435
_d9435