There has been data ("Pimsleur Polish Level 1 Lessons 11-15 MP3: Learn to Speak and Understand Polish with Pimsleur Language Programs (Pimsleur Digital)") available for this ISBN from the data sources that books-by-isbn.com uses, but not on the latest request on Tue Sep 3 01:29:16 2019, so the data displayed here has been removed .