Heys, H. L. (1960). An introduction to electronic theory of organic compounds. Harrap.
Čikaški stil citiranja (17. izdanje)Heys, Harry Law. An Introduction to Electronic Theory of Organic Compounds. London: Harrap, 1960.
MLA način citiranja (9. izdanje)Heys, Harry Law. An Introduction to Electronic Theory of Organic Compounds. Harrap, 1960.
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