Mortimer, C. B. (1971). Chemistry: A conceptual approach (2nd ed.). G.M.S. Pub.
Cita Chicago (17th ed.)Mortimer, Charles B. Chemistry: A Conceptual Approach. 2nd ed. Quezon City: G.M.S. Pub, 1971.
Cita MLA (9th ed.)Mortimer, Charles B. Chemistry: A Conceptual Approach. 2nd ed. G.M.S. Pub, 1971.
Atenció: Aquestes cites poden no estar 100% correctes.