000 00448nam a22001337a 4500
008 230223b |||||||| |||| 00| 0 eng d
040 _aNational Science Library
_cNational Science Library
080 _aD 016:[002+02
_bL5
245 _aUser needs in documentation and information:
_bA bibliography with abstracts
260 _aVirginia:
_bNational Technical Information Services,
_c1975
300 _av, 60p.
650 _aReport
942 _2udc
_cREP
999 _c3607
_d3607