TY  - BOOK
AU  - Gardner,Martin
TI  - Knotted Doughnuts and Other Mathematical Entertainments
SN  - 0716717948 (hardcover)
PY  - 1986///
CY  - [S.l.]
PB  - W.H. Freeman
KW  - Mathematical recreations
UR  - http://10.10.170.122:8080/browse/book/6180
ER  -