APA (7th ed.) Citation

Widgery, D. (1976). The left in Britain 1956-1968. Harmondsworth: Penguin Books.

Chicago Style (17th ed.) Citation

Widgery, David. The Left in Britain 1956-1968. Harmondsworth: Penguin Books, 1976.

MLA (8th ed.) Citation

Widgery, David. The Left in Britain 1956-1968. Harmondsworth: Penguin Books, 1976.

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