International Federation of Library Associations and Institutions. Section on Government Information and Official Publications & Kagan, A. (1991). Reference service for publications of intergovernmental organizations: Papers from an IFLA workshop, Paris, August 24, 1989. K.G. Saur.
Cytowanie według stylu Chicago (wyd. 17)International Federation of Library Associations and Institutions. Section on Government Information and Official Publications i Alfred Kagan. Reference Service for Publications of Intergovernmental Organizations: Papers from an IFLA Workshop, Paris, August 24, 1989. Munchen ; New York: K.G. Saur, 1991.
Cytowanie według stylu MLA (wyd. 8)International Federation of Library Associations and Institutions. Section on Government Information and Official Publications i Alfred Kagan. Reference Service for Publications of Intergovernmental Organizations: Papers from an IFLA Workshop, Paris, August 24, 1989. K.G. Saur, 1991.