00462cam a2200145 i 4500020001700000040000800017082002600025100002700051245007400078260004700152300003400199490003400233650001900267650003000286  a0070840687 :  cDLC00a581 MCG 1977 A033 Or.2 aScott Russell, Robert.10aPlant root systems :btheir functions and interaction with the soil /  aLondon ;aNew York :bMcGraw-Hill,cc1977.  axii, 298 p. :bill. ;c24 cm.0 aEuropean plant biology series 0aRoots (Botany) 0aPlant-soil relationships.