00287nam a2200121 a 450000100080000000500110000800800410001910000190006024500380007925000110011726000260012830000110015418183911996-12-11       1970    bl uuuu      00u1 u    #d1 aRUSSELL, E. W.  aSoil conditions and plant growth.  a9. ed.  aLondon: Longmanc1970  a688 p.