Cita APA (7a ed.)

Safari Tech Books Online & Holzschlag, M. E. A. (2005). Spring into HTML and CSS (1st edition.). Addison Wesley.

Cita Chicago Style (17a ed.)

Safari Tech Books Online y Molly E Author Holzschlag. Spring into HTML and CSS. 1st edition. [Place of publication not identified]: Addison Wesley, 2005.

Cita MLA (9a ed.)

Safari Tech Books Online y Molly E Author Holzschlag. Spring into HTML and CSS. 1st edition. Addison Wesley, 2005.