The Guinness mathematics book /
Marsh, Leonard.
The Guinness mathematics book / Leonard Marsh. - Guinness : Londres, c1980. - 93 p. : il. ; 21 cm
0851126308
Matemáticas-problemas, ejercicios
The Guinness mathematics book / Leonard Marsh. - Guinness : Londres, c1980. - 93 p. : il. ; 21 cm
0851126308
Matemáticas-problemas, ejercicios