00493nam a22001697a 4500003000400000008004100004020001500045082001800060100001600078245004700094250001200141260005700153300001700210650004200227650003500269650001900304OSt220831b        |||||||| |||| 00| 0 eng d  a0258965460  a631.8 bC56C	  aCooke, G.W.  aThe control of soil fertility/by G.W. Cook  a1st.ed.  aLondon: bThe English Language Book Society, c1967.  axvii, 526 p.  aAgriculture and related technologies   aTechnology (Applied sciences)   aSoil fertility