Raul Herrera 100 Years of Achievement at the Hydrographic Institute of the Chilean Navy PDF (English)
R. S. Bryant Side Scan Sonar for Hydrography - An Evaluation by the Canadian Hydrographic Service PDF (English)
L. F. Ku, E. J. Minaker A Method of Presenting the Predicted Tides of a Mixed Type with Strong Diurnal Influence PDF (English)
S. H. Sharaf el Din Variation of Sea Level on the Egyptian Mediterranean and Red Sea Coasts PDF (English)
D. W. Newson, Ann Richardson The International Scheme of Medium and Large Scale Charts of the North-Eastern Atlantic Area PDF (English)
Martin L. Collier Hydrographic Survey Systems for the 1980's : A Technological Forecast PDF (English)
J. E. Galbraith, H. P.J. Edge "Recurrent", A Recording Current Meter Data Analysis System PDF (English)
