Gaya APA

Nursi, B, S. (2011). The Supreme Sign: The Observations of a Traveller Questioning the Universe Concerning His Maker . Istanbul: Sozler.

Gaya MLA

Nursi, Bediuzzaman, Said. "The Supreme Sign: The Observations of a Traveller Questioning the Universe Concerning His Maker". Istanbul: Sozler, 2011. Buku Tercetak.