Correll, R. (2011). Photo restoration and retouching using Corel Paintshop Photo Pro: Learn how to rescue old photos and improve your digital pictures! (2nd ed.). Cengage Learning.
Cita Chicago (17th ed.)Correll, Robert. Photo Restoration and Retouching Using Corel Paintshop Photo Pro: Learn How to Rescue Old Photos and Improve Your Digital Pictures! 2nd ed. Boston, Mass.: Cengage Learning, 2011.
Cita MLA (9th ed.)Correll, Robert. Photo Restoration and Retouching Using Corel Paintshop Photo Pro: Learn How to Rescue Old Photos and Improve Your Digital Pictures! 2nd ed. Cengage Learning, 2011.
Atenció: Aquestes cites poden no estar 100% correctes.