Citazione Stile APA (7a Edizione)

Bridges, J. H. (1976). The life & work of Roger Bacon: An introduction to the Opus majus. Richwood Pub. Co..

Citazione stile Chigago Style (17a edizione)

Bridges, John Henry. The Life & Work of Roger Bacon: An Introduction to the Opus Majus. Merrick, N.Y.: Richwood Pub. Co., 1976.

Citatione MLA (8a ed.)

Bridges, John Henry. The Life & Work of Roger Bacon: An Introduction to the Opus Majus. Richwood Pub. Co., 1976.