International rules for the cataloguing of educational, scientific and cultural films and filmstrips on 3'' x 5'' (7.5 cm x 12.5 cm) cards

Вид документа:	Продолжающиеся издания
Издание:	Preliminary ed.
Опубликовано:	Paris : Clearing House, Department of Mass Communication, Unesco, 1956
Язык:	Английский
Серия:	Reports and papers on mass communication ; № 17