Παραπομπή σε μορφή APA (7η εκδ.)

Nelson, C., & Lucie-Smith, E. (1991). The bear cult: Photographs by Chris Nelson. Introduced by Edward Lucie-Smith. Walter.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Nelson, Chris, και Edward Lucie-Smith. The Bear Cult: Photographs by Chris Nelson. Introduced by Edward Lucie-Smith. London: Walter, 1991.

Παραπομπή σε μορφή MLA (8th εκδ.)

Nelson, Chris, και Edward Lucie-Smith. The Bear Cult: Photographs by Chris Nelson. Introduced by Edward Lucie-Smith. Walter, 1991.