LEADER 00000nam 2200229 a 4500 001 0133400 003 UkHlHU 007 t 008 002110 0 1963 000 eng 040 UkHlHU 050 4 QH 541 S5 100 0 Shelford, Victor Ernest. 245 04 The ecology of North America. 260 Urbana, Ill. :|bUniversity of Illinois Press,|c1963. 300 610p. 650 0 Biology. 650 0 Human ecology. 650 0 Panbiogeography. 650 0 Biogeography. 946 650 has non-LCSH elements -- Check for Geac subject headings
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