Brown, T. L., LeMay, H. E., & Bursten, B. E. (1997). Chemistry: The central science (7th ed.). Prentice Hall.

Brown, Theodore L., H. Eugene LeMay, and Bruce Edward Bursten. Chemistry: The Central Science. 7th ed. Upper Saddle River, N.J.: Prentice Hall, 1997.

Brown, Theodore L., et al. Chemistry: The Central Science. 7th ed. Prentice Hall, 1997.