LEADER 00000nam 2200181 a 4500 001 0138959 003 UkHlHU 007 t 008 002410 0 1979 000 eng 040 UkHlHU 050 4 QH 541-15M3 T3 245 00 Theoretical systems ecology :|badvances and case studies. 260 New York :|bAcademic Press,|c1979. 300 516p. 700 0 Halfon, Efraim. 946 020 absent -- ISBN check required 946 6XX absent
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