Speakman, J. C. (1962). An introduction to the electronic theory of valency. London: Edward Arnold.
Čikaški stil citiranjaSpeakman, J. C. An Introduction to the Electronic Theory of Valency. London: Edward Arnold, 1962.
MLA način citiranjaSpeakman, J. C. An Introduction to the Electronic Theory of Valency. London: Edward Arnold, 1962.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.