This quarter (Winter 2017) you also have the option of purchasing an e-book from McGraw-Hill which has just the chapters with assigned reading from the third edition of the text. Some of these chapters have only a few sections which will be assigned; it was not possible to select content by sections.
When I checked, the price was $76.19. Please make sure that this option will work for you before purchasing; there are system requirements. This is the same text since Winter 2015.
To get this e-book:
ISBN: 9781308394336 Title: Logic Design