Cita APA

 Velte, T. J. (2008).  Green IT: Reduce Your Information System''s Environmental Impact While Adding to the Bottom Line.  Mc Graw Hill.

Chicago Style Citation

 Velte, Toby J.  Green IT: Reduce Your Information System''s Environmental Impact While Adding to the Bottom Line.  Mc Graw Hill, 2008.

Cita MLA

 Velte, Toby J.  Green IT: Reduce Your Information System''s Environmental Impact While Adding to the Bottom Line.  Mc Graw Hill, 2008.