APA (7th ed.) Citation

Gray. (2004). Practice makes perfect english verbs. McGraw Hill.

Chicago Style (17th ed.) Citation

Gray. Practice Makes Perfect English Verbs. New York: McGraw Hill, 2004.

MLA (9th ed.) Citation

Gray. Practice Makes Perfect English Verbs. McGraw Hill, 2004.

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