APA (7th ed.) Citation

Brown, G. I. (1958). An introduction to electronic theories of organic chemistry. Longmans, Green.

Chicago Style (17th ed.) Citation

Brown, G. I. An Introduction to Electronic Theories of Organic Chemistry. London, New York: Longmans, Green, 1958.

MLA (9th ed.) Citation

Brown, G. I. An Introduction to Electronic Theories of Organic Chemistry. Longmans, Green, 1958.