APA (7th ed.) Citation

James, A., & Masters, A. (2003). Teach yourself: Letter-writing skills. Contemporary Books.

Chicago Style (17th ed.) Citation

James, Adam, and Anthony Masters. Teach Yourself: Letter-writing Skills. Illinois: Contemporary Books, 2003.

MLA (9th ed.) Citation

James, Adam, and Anthony Masters. Teach Yourself: Letter-writing Skills. Contemporary Books, 2003.