Cita APA (7a ed.)

Ash, T. (2008). Landing page optimization: The definitive guide to testing and tuning for conversions. Sybex/Wiley.

Cita Chicago Style (17a ed.)

Ash, Tim. Landing Page Optimization: The Definitive Guide to Testing and Tuning for Conversions. Indianapolis, Ind.: Sybex/Wiley, 2008.

Cita MLA (9a ed.)

Ash, Tim. Landing Page Optimization: The Definitive Guide to Testing and Tuning for Conversions. Sybex/Wiley, 2008.