APA (7th ed.) Citation

Klein, D., & Klein, B. (2013). Grails 2: A quick-start guide (1st edition.). The Pragmatic Bookself.

Chicago Style (17th ed.) Citation

Klein, Dave, and Benjamin Klein. Grails 2: A Quick-start Guide. 1st edition. Dallas, Texas ; Raleigh, North Carolina: The Pragmatic Bookself, 2013.

MLA (9th ed.) Citation

Klein, Dave, and Benjamin Klein. Grails 2: A Quick-start Guide. 1st edition. The Pragmatic Bookself, 2013.