Duffey, G. H. (1962). Physical chemistry. McGraw-Hill.
Cita Chicago (17th ed.)Duffey, George H. Physical Chemistry. New York: McGraw-Hill, 1962.
Cita MLA (9th ed.)Duffey, George H. Physical Chemistry. McGraw-Hill, 1962.
Atenció: Aquestes cites poden no estar 100% correctes.