Cita APA (7a ed.)

Clare, J. D. (1995). The twentieth century (Programme of study, 1. publ.). Nelson.

Cita Chicago Style (17a ed.)

Clare, John D. The Twentieth Century. Programme of study, 1. publ. Walton-on-Thames: Nelson, 1995.

Cita MLA (9a ed.)

Clare, John D. The Twentieth Century. Programme of study, 1. publ. Nelson, 1995.