Citazione Stile APA (7a Edizione)

Clarke, E., Gibbons, M. J., & Jay, L. J. (1980). Objektive and completion tests in O Level geography: The British Isles (2. ed.). Murray.

Citazione stile Chigago Style (17a edizione)

Clarke, Ernest, M. J. Gibbons, e L. J. Jay. Objektive and Completion Tests in O Level Geography: The British Isles. 2. ed. London: Murray, 1980.

Citatione MLA (9a ed.)

Clarke, Ernest, et al. Objektive and Completion Tests in O Level Geography: The British Isles. 2. ed. Murray, 1980.