Petrucci, R. (1989). General chemistry: Principles and modern applications (5th ed.). MacMillan.
Cita Chicago (17th ed.)Petrucci, Ralph. General Chemistry: Principles and Modern Applications. 5th ed. New York: MacMillan, 1989.
Cita MLA (9th ed.)Petrucci, Ralph. General Chemistry: Principles and Modern Applications. 5th ed. MacMillan, 1989.
Atenció: Aquestes cites poden no estar 100% correctes.