00279nam a2200109Ia 450000500170000000800410001708200140005810000220007224500330009426000340012730000080016120260224040843.0260224s9999||||xx |||||||||||||| ||und||  a574.5 SWA  aSwartzman, G.L.   0aEcological simulation primer  aNew York: Macmillan Co.c1987  a370