APA (7th ed.) Citation

Hargraves, O. (2008). Slang rules!: A Practical Guide For English Learners. Merriam-Webster.

Chicago Style (17th ed.) Citation

Hargraves, Orin. Slang Rules!: A Practical Guide For English Learners. USA: Merriam-Webster, 2008.

MLA (9th ed.) Citation

Hargraves, Orin. Slang Rules!: A Practical Guide For English Learners. Merriam-Webster, 2008.