Walker, R. A., & Johnston, H. (1967). The language of chemistry: Reading, writing, and understanding chemical symbols and equations. Prentice-Hall.
Cita Chicago (17th ed.)Walker, Ruth A., i Helen Johnston. The Language of Chemistry: Reading, Writing, and Understanding Chemical Symbols and Equations. Englewood Cliffs, N.J.: Prentice-Hall, 1967.
Cita MLA (9th ed.)Walker, Ruth A., i Helen Johnston. The Language of Chemistry: Reading, Writing, and Understanding Chemical Symbols and Equations. Prentice-Hall, 1967.
Atenció: Aquestes cites poden no estar 100% correctes.