TY - BOOK AU - Yaglom, A. M. AU - Gordon, Basil AU - McCawley, James TI - Challenging mathematical problems with elementary solutions ; combinatorial analysis and probability theory T2 - Dover books on Mathematics U1 - 510.9 PY - 1987/// CY - New York PB - Dover N1 - "Purchased under NBHM grant for the year 1998-99" ER -