Gaya APA

Nursi, B, S. (2011). The Supreme sign : the observationds of a traveller questioning the universe concerning His Maker (Cet.4). Turki: Sozler Nesriyat A.S..

Gaya MLA

Nursi, Badiuzzaman, Said. "The Supreme sign : the observationds of a traveller questioning the universe concerning His Maker". Cet.4 Turki: Sozler Nesriyat A.S., 2011. Text.