00475nam a2200133Ia 4500008004100000020001800041082002000059100002100079245007700100260003600177300002600213490004600239500005600285260310b        |||||||| |||| 00| 0 eng d  a9781848002722  a518.11bB592.CI  aBiggs, Norman L.  aCodesb: an introduction to information communication and cryptography /  aLondon:bSpringer-Verlag,c2008  ax, 273p. Bibl. Index.  aSpringer undergraduate Mathematics series  a"Purchased under NBHM grant for the year 2008-2009"