APA (7th ed.) Citation

Plumb , J. H. (1950). 7: England in the Eighteenth century. Penguin books.

Chicago Style (17th ed.) Citation

Plumb , J. H. 7: England in the Eighteenth Century. Harmondsworth: Penguin books, 1950.

MLA (8th ed.) Citation

Plumb , J. H. 7: England in the Eighteenth Century. Penguin books, 1950.