TY  - BOOK
AU  - Northrop,Eugene P.
TI  - Paradojas matemáticas
U1  - 510.76 
PY  - 1968///
CY  - México :U.T.H.A.
KW  - Mathematical recreations
KW  - Local
N1  - Riddles in mathematics :a book of paradoxes; "Notes and references": p. 337-348
ER  -