1. The orbital concept in molecular spectroscopy
2. Molecular Shapes: Theoretical Models of Inorganic Stereochemistry (Wiley, New York, 1980).
3. Ed., Chemical Reactivity and Reaction Paths (Wiley, New York, 1974).
4. and Molecular Photoelectron Spectroscopy: A Handbook of the 584 A Spectra (Wiley, New York, 1970).
5. Electronic structure of molecules by (e,2e) spectroscopy