Learning to use the desk calculator. A linear teaching program on file cards, forming a complete course to C.S.E. and G.C.E. 'O' level in the handling of mathematical processes by a desk calculator. Contents include test and answer cards, hints and a teacher's booklet.
Behmber, A. F.
Jewell, D. E.
[S.l., 
1967]
Printed on cards.
Joint authors: A.F. Behmber and D.E. Jewell.