TY  - BOOK
AU  - Block, Seymour S
AU  - Tavares, Santiago Alves
TI  - Before Sudoku : the world of magic squares
SN  - 9780195367904 (alk. paper)
SN  - 200801853
U1  - 793.74 BLO 
PY  - 2009///
CY  - Oxford
PB  - Oxford University Press
KW  - Magic squares
KW  - Mathematical recreations
KW  - Sudoku
N1  - Includes bibliographical references (p. 225-232) and index
ER  -