000 00435nam a22001457a 4500
008 230504b |||||||| |||| 00| 0 eng d
040 _aNational Science Library
_cNational Science Library
080 _aR 05(058.7)(71+73)
_bL8.2
245 _aStandard periodical directory 1979-80
250 _a6th ed.
260 _aNew York:
_bOxbridge Communication, Inc.,
_c1978
300 _a1680p.
650 _aDirectory
942 _2udc
_cDIR
999 _c27123
_d27123