Showing 1 - 3 results of 3 for search '', זמן שאילתה: 0.01s Refine Results
  1. 1

    International Working group on Project 5 ecological effects on human activities on the value and resources of lake, marshes, rivers, deltas, estuaries and coastal zones, Paris, 13-...

    יצא לאור 1975
    ספר

    International Working group on Project 5 ecological effects on human activities on the value and resources of lake, marshes, rivers, deltas, estuaries and coastal zones, Paris, 13-17 MY, 1974 ; final report. Programme on Man and the Biosphere, United Nations \educational, Scientifc and Cuyltural Organization.
  2. 2

    Pollution ecology of freshwater in invertebrates מאת Hart, C. W.

    יצא לאור 1974
    ספר

    Pollution ecology of freshwater in invertebrates
  3. 3

    An ecological study of a freshwater ecosystem [microform] מאת Altarejos, Josefina A.

    יצא לאור 1974
    Visual Material

    An ecological study of a freshwater ecosystem [microform]

כלי חיפוש: