Barr, Stephen.
Mathematical brain benders : 2nd miscellany of puzzles / Stephen Barr. - New York : Dover Publications, c1982. - 224 p. : ill. ; 21 cm.
Reprint. Originally published: 2nd miscellany of puzzles. New York : Macmillan, 1969.
0486242609 9780486242606
Mathematical recreations
Puzzles
Mathematical brain benders : 2nd miscellany of puzzles / Stephen Barr. - New York : Dover Publications, c1982. - 224 p. : ill. ; 21 cm.
Reprint. Originally published: 2nd miscellany of puzzles. New York : Macmillan, 1969.
0486242609 9780486242606
Mathematical recreations
Puzzles