Chang, R. (1991). Chemistry. McGraw-Hill.
Cita Chicago (17th ed.)Chang, Raymond. Chemistry. New York: McGraw-Hill, 1991.
Cita MLA (9th ed.)Chang, Raymond. Chemistry. McGraw-Hill, 1991.
Atenció: Aquestes cites poden no estar 100% correctes.
Chang, R. (1991). Chemistry. McGraw-Hill.
Cita Chicago (17th ed.)Chang, Raymond. Chemistry. New York: McGraw-Hill, 1991.
Cita MLA (9th ed.)Chang, Raymond. Chemistry. McGraw-Hill, 1991.