Continuous Integration was popularized by Martin Fowler and Kent Beck. It is so tightly integrated with version control system (“Maintain a Single Source Repository”, “Everyone Commits Every Day”, “Don’t Commit Broken Code” are basic practices of CI), that it clearly deserves mentioning here. Martin Fowler wrote an overview article: “Continuous Integration”.
“Continuous Integration: Improving Software Quality and Reducing Risk” is the book by Paul Duvall which was published in Martin Fowler signature series. You may find sample chapters online: