Cita APA (7a ed.)

Martell, J. (1983). The twentieth-century world (3. ed., reprinted.). Harrap.

Cita Chicago Style (17a ed.)

Martell, John. The Twentieth-century World. 3. ed., reprinted. London: Harrap, 1983.

Cita MLA (9a ed.)

Martell, John. The Twentieth-century World. 3. ed., reprinted. Harrap, 1983.