1. ; Thermodynamics and the Free Energy of Chemical Substances; McGraw-Hill: New York, 1923; p. vii.
2. (a) Converging Trajectories, Diverging Traditions: Chemical Bond, Valence, Quantum Mechanics, and Chemistry, 1927–1937, University of Maryland, MD, 1993 (University Microfilms, Publication No. 9327498);
3. The Americans, the Germans, and the Beginnings of Quantum Chemistry: The Confluence of Diverging Traditions
4. American physics comes of age
5. LIX. A revision of the fundamental laws of matter and energy