Cita APA (7th ed.)

Freeman, E., & Freeman, E. (2006). Head first HTML with CSS & XHTML. O'Reilly ; Shroff Publishers and Distributors.

Cita Chicago (17th ed.)

Freeman, Elisabeth, i Eric Freeman. Head First HTML with CSS & XHTML. Beijing ; Sebastopol, CA : New Delhi: O'Reilly ; Shroff Publishers and Distributors, 2006.

Cita MLA (8th ed.)

Freeman, Elisabeth, i Eric Freeman. Head First HTML with CSS & XHTML. O'Reilly ; Shroff Publishers and Distributors, 2006.