Author

Robert Alfred Lehfeldt

12 books found

Cover of Electro-chemistry

Electro-chemistry

Lehfeldt, Robert Alfred · First published 1904 · Latest edition 2008

Placeholder cover for Money

Money

Robert Alfred Lehfeldt · First published 1926

Placeholder cover for Controlling the output of gold

Controlling the output of gold

Robert Alfred Lehfeldt · First published 1927

Placeholder cover for Descriptive economics

Descriptive economics

Lehfeldt, Robert Alfred · First published 1927

Cover of Restoration of the world's currencies

Restoration of the world's currencies

Lehfeldt, Robert Alfred · First published 1923

Cover of The national resources of South Africa

The national resources of South Africa

Lehfeldt, Robert Alfred · First published 1922

Cover of Gold, prices, and the Witwatersrand

Gold, prices, and the Witwatersrand

Lehfeldt, Robert Alfred · First published 1919

Placeholder cover for Economics in the light of war

Economics in the light of war

Robert Alfred Lehfeldt · First published 1916

Placeholder cover for Electro-chemistry. part 1, General theory

Electro-chemistry. part 1, General theory

Robert Alfred Lehfeldt · First published 1908

Cover of Text-book of physics

Text-book of physics

Lehfeldt, Robert Alfred · First published 1902

Cover of A text-book of physical chemistry

A text-book of physical chemistry

Lehfeldt, Robert Alfred · First published 1899

Cover of A list of the chief memoirs on the physics of matter

A list of the chief memoirs on the physics of matter

Robert Alfred Lehfeldt · First published 1894