APA (7th ed.) Citation

HILL, L. (1982). Word Power 4500 Vocabulary Test and Exercises in American English. Oxford University Press.

Chicago Style (17th ed.) Citation

HILL, L.A. Word Power 4500 Vocabulary Test and Exercises in American English. Oxford University Press, 1982.

MLA (8th ed.) Citation

HILL, L.A. Word Power 4500 Vocabulary Test and Exercises in American English. Oxford University Press, 1982.

Warning: These citations may not always be 100% accurate.