00288nam a22000977a 4500020001500000082001600015100004700031245004800078260003100126300003300157  a0121674517  222a005.133  aChamplain, Michel de and Patrick, Brian G.  aC# 2.0 :bpractical guide for programmers /  aBoston,bElesvier,cc2005.  axix, 251p. ;bill. ;c23 cm.