Teaching mathematics in the modern elementary school

Dades bibliogràfiques
Autor principal:	Collier, Calhoun C. (Calhoun Crofford) 1916-
Altres autors:	Lerch, Harold H. (joint author.)
Format:	Llibre
Idioma:	English
Publicat:	[New York] Macmillan [1969]
Matèries:	Mathematics > Study and teaching (Elementary)