Understanding mathematics :
Cox, C.J.
Understanding mathematics : Teacher's resource book 5. - 2nd ed. - London : John Murray, 1993. - 140 p. ill. 30 cm.
0719550335
511.4 COX
Understanding mathematics : Teacher's resource book 5. - 2nd ed. - London : John Murray, 1993. - 140 p. ill. 30 cm.
0719550335
511.4 COX