000 00294 am a2200121 a 4500
100 1 _aHolmes, W., Allanson, G.
245 1 _aGrassland systems
260 _aLondon
_c1967
300 _a77-84 p.
942 _2udc
_cB
440 _aGrassland London Wye College. Reprint No. 344
901 _aS52055
999 _c109693
_d109693