Moscow puzzles :
Kordemsky, Boris A
Moscow puzzles : 359 mathematical recreations - Dover Publications, 1972. - 309p.
9780486270784
Mathematical recreations
793.7 / KOR-P
Moscow puzzles : 359 mathematical recreations - Dover Publications, 1972. - 309p.
9780486270784
Mathematical recreations
793.7 / KOR-P