R. A. Lehfeldt

On Life-Tables

R. A. Lehfeldt, 1918 .

The Elasticity of Demand for Wheat

R. A. Lehfeldt, 1914 .

An accurate method for determining the apparent densities of small amounts of solids and its application to pyrolytic carbons

R. A. Lehfeldt, E. Seddon, D. Armstrong, 2016 .

A Text Book of Physical Chemistry

R. A. Lehfeldt, 1948, Nature.

Lectures on Theoretical and Physical Chemistry

R. A. Lehfeldt, J. H. van 't Hoff, Robert Alfred Lehfeldt, 1900, Nature.

The Rate of Interest on British and Foreign Investments

R. A. Lehfeldt, 1913 .