Citazione Stile APA (7a Edizione)

Davies, I. K., & Hartley, J. (1972). Contributions to an educational technology. Butterworths.

Citazione stile Chigago Style (17a edizione)

Davies, Ivor K., e James Hartley. Contributions to an Educational Technology. London: Butterworths, 1972.

Citatione MLA (8a ed.)

Davies, Ivor K., e James Hartley. Contributions to an Educational Technology. Butterworths, 1972.