Schwarz, D., & Kearney, D. (2019). UX: Essential Tools (1st edition.). SitePoint.
Chicago Style (17th ed.) CitationSchwarz, Daniel, and Dave Kearney. UX: Essential Tools. 1st edition. SitePoint, 2019.
MLA (9th ed.) CitationSchwarz, Daniel, and Dave Kearney. UX: Essential Tools. 1st edition. SitePoint, 2019.
Warning: These citations may not always be 100% accurate.