Cita APA (7a ed.)

Heys, H. L. (1960). An introduction to electronic theory of organic compounds. Harrap.

Cita Chicago Style (17a ed.)

Heys, Harry Law. An Introduction to Electronic Theory of Organic Compounds. London: Harrap, 1960.

Cita MLA (9a ed.)

Heys, Harry Law. An Introduction to Electronic Theory of Organic Compounds. Harrap, 1960.