The Operation of Bureaus of Educational Research: With Particular Reference to Wisconsin

Autor:	Theisen, W. W.
Zdroj:	The Journal of Educational Research, 1920 May 01. 1(5), 382-391.
Databáze:	JSTOR Journals
Externí odkaz:	https://www.jstor.org/stable/27524327 Zobrazit plný text záznamu