Semi-annual summary research report in engineering

A semi-annual summary research report in engineering for July through December of 1955

Semi-annual summary research report in engineering

A semi-annual summary research report in engineering for the period of July through December of 1958

Semi-annual summary research report in metallurgy

A semi-annual summary research report in metallurgy for the period of July through December of 1955

Chemistry semi-annual summary research report

A semi-annual summary research report in chemistry for the period of July through December of the year 1958

Semi-annual summary research report in physics

A semi-annual summary research report in physics for the period of July through December of the year 1956