Cita APA

Hill, L. (1992). Word Power 4500: Vocabulary Tests and Exercises in American English. Oxford: Oxford University Press.

Citación estilo Chicago

Hill, L.a. Word Power 4500: Vocabulary Tests and Exercises in American English. Oxford: Oxford University Press, 1992.

Cita MLA

Hill, L.a. Word Power 4500: Vocabulary Tests and Exercises in American English. Oxford: Oxford University Press, 1992.