Παραπομπή APA

Lohr, R., & Bell, A. (2007). Secrets of the chess machine. Fig Tree.

Παραπομπή Chicago Style

Lohr, Robert, και Anthea Bell. Secrets of the Chess Machine. London: Fig Tree, 2007.

Παραπομπή MLA

Lohr, Robert, και Anthea Bell. Secrets of the Chess Machine. Fig Tree, 2007.