Παραπομπή APA

Heys, H. L., & Hughes, E. D. (1960). An introduction to electronic theory of organic compounds. London: George G. Harrap.

Παραπομπή Chicago Style

Heys, H. L., and E. D. Hughes. An Introduction to Electronic Theory of Organic Compounds. London: George G. Harrap, 1960.

Παραπομπή MLA

Heys, H. L., and E. D. Hughes. An Introduction to Electronic Theory of Organic Compounds. London: George G. Harrap, 1960.

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