APA (7th ed.) Citation

Cole, G. D. H. (1945). Persons and periods. Penguin Books.

Chicago Style (17th ed.) Citation

Cole, G. D. H. Persons and Periods. Harmondsworth: Penguin Books, 1945.

MLA (9th ed.) Citation

Cole, G. D. H. Persons and Periods. Penguin Books, 1945.

Warning: These citations may not always be 100% accurate.