LEADER 00000nam 2200205 a 4500 001 0917882 007 t 008 001801 1 1990 000 eng 020 0816511152 040 BLAISE 050 4 QE 720 P1 245 00 Packrat middens :|bthe last 40,000 years of biotic change /|cedited by Julio L. Betancourt, Thomas R. Van Devender, and Paul S. Martin. 260 Tucson, Ariz. :|bUniversity of Arizona Press,|c1990. 300 467p. 700 1 Betancourt, Julio L. 700 1 Van Devender, Thomas R. 700 1 Martin, Paul Schultz,|d1928- 946 6XX absent
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