00573naa a2200193 a 450000100080000000500110000800800410001910000240006024501050008426000090018965000140019865000130021265000150022565000130024065300150025365300270026865300280029577300560032318025902017-04-17       1981    bl ---       0--  u    #d1 aVOLKMER-RIBEIRO, C.  aLimnologia e a vegetacao de macrofitas na lagoa Negra, Parque Estatual de Itapua, Rio Grande do Sul.  c1981  alimnology  aresearch  aLimnologia  aPesquisa  aBog waters  aMacrophytes vegetation  aVegetacao de macrofitas  tIheringia, Ser. Botanicagn.27, p.41-68, jun. 1981.