Cita APA (7a ed.)

Plumb, J. (1950). England in the eighteenth century. Penguin.

Cita Chicago Style (17a ed.)

Plumb, J.H. England in the Eighteenth Century. New York: Penguin, 1950.

Cita MLA (8a ed.)

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