1. A Guide to the operation of the agreement for facilitating the international circulation of visual and auditory materials of an educational, scientific, and cultural character : Beirut agreement adopted by the General Conference of Unesco at Beirut, 1948.
Author:
Library: National Library and Archives of Islamic Republic of Iran (Tehran)
Subject: کتابخانهها,کتابداری بینالمللی, -- خدمات دید و شنودی,مواد دید و شنودی-- گردش
Classification :
Z
۷۱۷
/
گ
۲ ۱۳۴۸
