Speech delivered by the President of the Directing Committee to the Personnel of the Bureau on the occasion of the 30th Anniversary of the creation of the International Hydrographic Bureau, 21st June 1951 PDF
Transmitted by the RADM, Dir. Gen. of Na The Department of Navigation and Hydrography of the Argentine Republic PDF
A. Viglieri The Work of the Triangulations Section at the IXth General Meeting of U.G.G.I. at Brussels PDF
Henri Becker Thirtieth Anniversary of the International Hydrographic Bureau. ─ Its creative origins and its creation PDF
