How and Why Wonder Book of Mathematics Esther Harris Highland Harold Joseph Highland

Autor:	Rudd, Lonie E.
Zdroj:	The Arithmetic Teacher, 1962 Apr 01. 9(4), 227-228.
Databáze:	JSTOR Journals
Externí odkaz:	https://www.jstor.org/stable/41186627 Zobrazit plný text záznamu