Brinton, E., Plumb, W., White, C. M., Davis, P. 1., & Shepherd, J. (1974). Active context English (New edition.). London, Sydney: Macmillan Education.

Brinton, Ethel, Walter Plumb, Colin M. White, Paul 1952- Davis, and John Shepherd. Active Context English. New edition. London, Sydney: Macmillan Education, 1974.

Brinton, Ethel, et al. Active Context English. New edition. London, Sydney: Macmillan Education, 1974.