Walker, R. A., & Johnston, H. (1967). The language of chemistry: Reading, writing, and understanding chemical symbols and equations. Prentice-Hall.
Citazione stile Chigago Style (17a edizione)Walker, Ruth A., e Helen Johnston. The Language of Chemistry: Reading, Writing, and Understanding Chemical Symbols and Equations. Englewood Cliffs, N.J.: Prentice-Hall, 1967.
Citatione MLA (9a ed.)Walker, Ruth A., e Helen Johnston. The Language of Chemistry: Reading, Writing, and Understanding Chemical Symbols and Equations. Prentice-Hall, 1967.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.