Report of the15th International Congress of the International Graphical Federation, London 6-8 october 1991.

MLA

Report of The15th International Congress of the International Graphical Federation, London 6-8 October 1991. Brussel: IGF, 1991.

APA

(1991). Report of the15th International Congress of the International Graphical Federation, London 6-8 october 1991. Brussel: IGF.

Chicago

Report of The15th International Congress of the International Graphical Federation, London 6-8 October 1991. Brussel: IGF, 1991.