000 00471nam a22001217a 4500
008 230719b |||||||| |||| 00| 0 eng d
040 _aNational Science Library
_cNational Science Library
100 1 _aArnett, E M
_912764
245 _aChemical information center experimental station
_c/ Pittsburgh Chemical Information Center Pittsburgh, Pennsylvania 1 September, 1969
260 _aWashington:
_bUS Department of Commerce,
_c1969
300 _a259p.
942 _2udc
_cREF
999 _c53652
_d53652