1.
Upper Saddle River, NJ : Prentice Hall PTR, c2001.
Spanish | D 73 GEA.A |
2.
Birmingham [U.K.] : Packt, 2004.
English | D 801 BUT.B |
3.
San Francisco, CA : Morgan Kaufmann Publishers, c2001.
English | D 740 FRI.W |