APA استشهاد

Croghan, A. (1976). A Bibliographic System for Non Media: A Description and List of Works. Coburgh.

استشهاد بنمط شيكاغو

Croghan, Antony. A Bibliographic System for Non Media: A Description and List of Works. London: Coburgh, 1976.

MLA استشهاد

Croghan, Antony. A Bibliographic System for Non Media: A Description and List of Works. Coburgh, 1976.