APA

United Nations Educational, . (1969). A guide to the operation of the Agreement for facilitating the inter national circulation of visual and auditory materials of an educational , scientific and cultural character 'Beirut Agreement' adopted by the G eneral Conference of Unesco at Beirut 1948. Paris: .

Chicago

United Nations Educational, . 1969. A guide to the operation of the Agreement for facilitating the inter national circulation of visual and auditory materials of an educational , scientific and cultural character 'Beirut Agreement' adopted by the G eneral Conference of Unesco at Beirut 1948. Paris: .

Harvard

United Nations Educational, . (1969). A guide to the operation of the Agreement for facilitating the inter national circulation of visual and auditory materials of an educational , scientific and cultural character 'Beirut Agreement' adopted by the G eneral Conference of Unesco at Beirut 1948. Paris: .

MLA

United Nations Educational, . A guide to the operation of the Agreement for facilitating the inter national circulation of visual and auditory materials of an educational , scientific and cultural character 'Beirut Agreement' adopted by the G eneral Conference of Unesco at Beirut 1948. Paris: . 1969.