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=008  250616s1981\\\\xx\|||||||||||||||||eng\d
=082  04$a307.122 WIL
=100  1\$aWilson, A.G.
=245  10$aCatastrophe Theory and Bifurcation Applications to Urban and Regional Systems
=260  \\$aBerkeley, CA :$bUniversity of California Press,$c1981
=852  \\$bGeography Basement$cBooks$h307.122 WIL