Cita APA

Davies, A., & Davies, A. (1990). Principles of language testing. Cambridge, Mass.: Basil Blackwell.

Citación estilo Chicago

Davies, Alan, y Alan Davies. Principles of Language Testing. Cambridge, Mass.: Basil Blackwell, 1990.

Cita MLA

Davies, Alan, y Alan Davies. Principles of Language Testing. Cambridge, Mass.: Basil Blackwell, 1990.