Soviet Education Programs. U. S. Office of Education, Department of Health, Education, and Welfare, Bulletin 1960, No. 17 William K. Medlin Clarence B. Lindquist Marshall L. Schmitt

Autor:	Siemiencow, George
Zdroj:	The Science Teacher, 1961 Mar 01. 28(2), 49-53.
Databáze:	JSTOR Journals
Externí odkaz:	https://www.jstor.org/stable/24144514 Zobrazit plný text záznamu