Cita APA (7a ed.)

Roberts, C. (2002). Modern world history entry level certificate (1. publ.). Heinemann.

Cita Chicago Style (17a ed.)

Roberts, Colette. Modern World History Entry Level Certificate. 1. publ. Oxford: Heinemann, 2002.

Cita MLA (9a ed.)

Roberts, Colette. Modern World History Entry Level Certificate. 1. publ. Heinemann, 2002.