SIENKO, M. J. (1971). Chemistry. McGraw-Hill.
Cita Chicago (17th ed.)SIENKO, Michell J. Chemistry. New York: McGraw-Hill, 1971.
Cita MLA (9th ed.)SIENKO, Michell J. Chemistry. McGraw-Hill, 1971.
Atenció: Aquestes cites poden no estar 100% correctes.