Keenan, C. W. (1980). General College Chemistry. Harper & Row.
Cita Chicago (17th ed.)Keenan, Charles W. General College Chemistry. San Francisco: Harper & Row, 1980.
Cita MLA (9th ed.)Keenan, Charles W. General College Chemistry. Harper & Row, 1980.
Atenció: Aquestes cites poden no estar 100% correctes.