000 00348 am a2200121 a 4500
100 1 _aWorthington, E.B.
245 1 _aSpecial committee for the international biological programme
260 _aLondon
_c1972
300 _a1-49 p.
942 _2udc
_cB
440 _aBiology International Biological Programme News. IBP News No. 23
901 _aS55109
999 _c113342
_d113342