Johan Tidemand Ruud

1903 – ,

• Dette er Norge
• Dette er Norge, 1814-1964
• I. Deep-sea prawn fisheries and their problems. II. A bottom-sampler for the mud-line
• On the biology of copepods off Möre. 1925-1927
• The hydrographic conditions and aeration of the Oslo fjord, 1933-1934