000 00302 am a2200121 a 4500
100 1 _aWalker, T.W.
245 1 _aSoil testing
260 _aChristchurch
_c1953
300 _a1-4 p.
942 _2udc
_cB
440 _aSoil Canterbury Chamber of Commerce. Agricultural Bulletin No. 283
901 _aS54337
999 _c112470
_d112470