Cita APA (7a ed.)

Poulton, R. (1981). A history of the Modern World. Oxford Univ. Press.

Cita Chicago Style (17a ed.)

Poulton, Richard. A History of the Modern World. Oxford [u.a.]: Oxford Univ. Press, 1981.

Cita MLA (9a ed.)

Poulton, Richard. A History of the Modern World. Oxford Univ. Press, 1981.