Kiesel, R. F., Busch, D. H., & Gore, E. S. (1973). Problems for chemistry. Allyn and Bacon.
Cita Chicago (17th ed.)Kiesel, Rodney F., Daryle H. Busch, i Ernest S. Gore. Problems for Chemistry. Boston: Allyn and Bacon, 1973.
Cita MLA (8th ed.)Kiesel, Rodney F., et al. Problems for Chemistry. Allyn and Bacon, 1973.
Atenció: Aquestes cites poden no estar 100% correctes.