1. : The Nature of the Chemical Bond, 3rd edit., Cornell University Press, Ithaca, NY, USA 1960.
2. : The Donor-Acceptor Bond, Wiley, New York 1975.
3. (Ed.): Hard and Soft Acids and Bases, Dowden, Hutchinson and Ross, Stroudsburg, PA, USA 1973.
4. : The Donor-Acceptor Approach to Molecular Interactions, Plenum, New York 1978.
5. : Ion Solvation, Wiley, New York 1985.