Oxtoby, D. W., Freeman, W. A., & Nachtrieb, N. H. (1994). Chemistry: Science of change (2nd ed.). Saunders college.
Cita Chicago (17th ed.)Oxtoby, David W., Wade A. Freeman, i Norman H. Nachtrieb. Chemistry: Science of Change. 2nd ed. Philadelphia: Saunders college, 1994.
Cita MLA (9th ed.)Oxtoby, David W., et al. Chemistry: Science of Change. 2nd ed. Saunders college, 1994.
Atenció: Aquestes cites poden no estar 100% correctes.