Lewis. (2013). iPhone and iPad Apps for Absolute Beginners (3.). Apress.
Cita Chicago (17th ed.)Lewis. IPhone and IPad Apps for Absolute Beginners. 3. Apress, 2013.
Cita MLA (8th ed.)Lewis. IPhone and IPad Apps for Absolute Beginners. 3. Apress, 2013.
Atenció: Aquestes cites poden no estar 100% correctes.