00383nam a2200145 a 450000100080000000500110000800800410001910000140006024500510007426000560012530000100018165300150019165300130020665300180021911157381998-07-09       1954    bl uuuu      00u1 u    #d1 aBROWN, D.  aMethods of susveying and measuring vegetation.  aInglaterra: Commonwealth Agricultural Bureauxc1954  a223p.  aAMOSTRAGEM  aPASTAGEM  aPRODUTIVIDADE