Cita APA (7th ed.)

Sarif, S. (2008). The world unseen. Elightenment.

Cita Chicago (17th ed.)

Sarif, Shamim. The World Unseen. London: Elightenment, 2008.

Cita MLA (9th ed.)

Sarif, Shamim. The World Unseen. Elightenment, 2008.