Hill, J. W. (1996). Chemistry for Changing Times (8th ed.). Prentice Hall.
Cita Chicago (17th ed.)Hill, John W. Chemistry for Changing Times. 8th ed. New Jersey: Prentice Hall, 1996.
Cita MLA (9th ed.)Hill, John W. Chemistry for Changing Times. 8th ed. Prentice Hall, 1996.
Atenció: Aquestes cites poden no estar 100% correctes.