00398nam a22001097a 4500008004100000082001900041245007200060260005400132300002900186440003800215700003500253250613b        |||||||| |||| 00| 0 eng d  a511.6bM825.DS  aDifference setsb: connecting algebra, combinatorics and geometry /  aProvidence:bAmerican Mathematical Society,c2013  axiii, 298p. Bibl. Index.  aStudent mathematical library ; 67  aPollatsek, Harriet S.eauthor.