00399nam a2200133Ia 4500082001900000100001400019245003400033260003500067300001600102490005100118500008600169500000500255700000500260  a511.6bB495.PC  aBerge, C.  aPrinciples of combinatoricsb  aNew YorkbAcademic Pressc1971  aviii, 176p.  aMathematics in Science and Engineeringv v. 72  a"First published in French language under the title' Principles de combinatoire".  a  a