000 00295nam a2200133Ia 4500
008 160316s1974 xxu||||| |||| 00| 0 eng d
020 _a0120787520
100 _aBarker, A N
245 _aSpore Research
250 _a
260 _aLondon
_bAcademic Press
_c1974
300 _a277
700 _a
_a
999 _c17715
_d17715