004220000a22001330004500020001800000060000800018082001500026100001600041245010000057260004200157260000900199300000800208650007200216  a0 521 21051 8  a100  a630.72 ARN  aArnold, M H  aCotton research corporation : agrciultural research for development the Namu longe Contribution  aCambridge, Cambridge University Press  c1976  a345  aAgricultural research administration /underdeveloped areas research