TY  - GEN
AU  - Moscovich,Ivan
TI  - The puzzle universe: the history of math in 315 puzzles
SN  - 9780228101536
PY  - 2019///
CY  - Richmond Hill
PB  - Firefly Books
KW  - Mathematical recreation
KW  - Mathematics
KW  - Problems, exercises, etc
KW  - History
ER  -