The previous page is sending you to https://www.vitalsource.com/products/pro-wpf-matthew-macdonald-v9781430203759?duration=30&srsltid=AfmBOorLYAkEYVO-VMlEop_iHtT0JRaDrs9eKliGT_Bza1Fc-objRS-W3fs.

 If you do not want to visit that page, you can return to the previous page.