Plumb, J. (1971). England in the eighteenth century. Hammondsworth: Penguin Books.
Chicago Style aipamenaPlumb, J.H. England in the Eighteenth Century. Hammondsworth: Penguin Books, 1971.
MLA aipamenaPlumb, J.H. England in the Eighteenth Century. Hammondsworth: Penguin Books, 1971.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.