00266    a2200109   4500020001400000082001500014100001700029245002700046260004000073300001900113650002400132  a81224006X  a511.8bKAP  aKapur, J. N.  aMathematical modelling  aNew DelhibWley Easternc1988g1994  axi,159p.c25cm  aMathematical models