@Book{thomas05a,
  author =	 {Dave Thomas},
  title =	 {Programming Ruby: The Pragmaic Programmers' Guide},
  publisher =	 {Pragmatic Bookshelf},
  year =	 2005,
  isbn =	 {0974514055},
  abstract =	 {Ruby is an increasingly popular, fully
                  object-oriented dynamic programming language, hailed
                  by many practitioners as the finest and most useful
                  language available today. When Ruby first burst onto
                  the scene in the Western world, the Pragmatic
                  Programmers were there with the definitive reference
                  manual, Programming Ruby: The Pragmatic Programmer's
                  Guide.},
  url = 	 {http://jmvidal.cse.sc.edu/library/thomas05a.pdf}
}