The psychology and teaching of number / by Margaret Drummond.

London : George G. Harrap, 1922.

126 pages : illustrations ; 19 cm

This edition was reprinted in 1926

Also published Yonkers-on-Hudson, World Book Co., 1922.

Copy 1 Supplier/Donor: Polytechnic of East London Note: 1926 printing. Formerly in the Charles Myers Library at the N.I.I.P. Contains Charles Myers Library bookplate. "Presented to the Charles Myers Library by the executors of E.J.D. Radclyffe"