Citazione Stile APA (7a Edizione)

Vickery, B. C. (1961). On retrieval system theory. Butterworths.

Citazione stile Chigago Style (17a edizione)

Vickery, Brian Campbell. On Retrieval System Theory. London: Butterworths, 1961.

Citatione MLA (9a ed.)

Vickery, Brian Campbell. On Retrieval System Theory. Butterworths, 1961.