Horkheimer, Mary F. and Diffor, John W. Educators guide to free slidefilms. Randolph, Wisconsin: Educators progress service, 1949. 114 p. $3.00

✍ Scribed by Greta Oppe

• Book ID: 112193074
• Publisher: John Wiley and Sons
• Year: 1950
• Tongue: English
• Weight: 111 KB
• Volume: 34
• Category: Article
• ISSN: 0097-0352
• DOI: 10.1002/sce.3730340520