Numbers in colour
Subtitle: a new method of teachingthe processes of arithmetic to all levels of the primary school
By: by G. Cuisenaire and C. Gattegno.
Contributors: Gattegno, Caleb.
Edition: 2nd ed.
Publisher: Heinemann
Published: 1955
Place of publication: London
Language: eng
Number of pages: 56
Notes: Previous ed. 1954 (B54-15732).