Challenging maths
By: by C. E. L. Farmer and M. C. Swash, J. W. Baxter; (in 10vols).
Contributors: Swash, M. C. 1938-; Baxter, John William.
Publisher: McGraw-Hill
Published: 1968
Place of publication: London
Language: eng
Number of pages: 66
Subjects: Mathematics.
Notes: For secondary schools.

bibl p65-66.