00712nam a2200205 4500 1/860 010502s1981 enk eng 0709927029 879 DLC GR-PeUP 910.01'51472 WI Wilson, Allan Geoffrey. Catastrophe theory and bifurcation: applications to Urban and regional systems / A.G. Wilson London, University Of California Press, 1981 331 p. 21 cm. Includes bibliography and index Geography Mathematics. Catastrophes (Mathematics) Bifurcation theory. INST UNIPILB MAIN 20040709 910.01'51472 WI 00136186 00136186 LOAN 0 1