Κανονική προβολή Προβολή MARC Προβολή ISBD

Gattegno, Caleb

Mathematics with numbers in colour. book 1 / G. Gattegno. - Reading: Educational Explorers, 1963. - 102 p. ; 22 cm.

Subjects--Topical Terms:
Arithmetic

Dewey Class. No.: 513