004870000a22001570004500020001800000060000800018082001900026100001900045245007800064260004200142260000900184300000800193490004300201490003900244650004600283  a0 521 21867 5  a100  a574.526 43 COU  aCoupland, R.T.  aGrassland ecosystems of the world : analysis of grasslands and their uses  aCambridge, Cambridge Universtiy press  c1979  a401  a18cInternational biological programme  aInternational biological programme  aGrassland ecosystem/ ecology -  grassland