Starting at the library homepage (library.walsh.edu), use the red Search-A-Lot box, click on the Articles tab.
At the bottom of that Articles box, choose Databases by Subject, where you will see subdivisions by major, including Nursing. Click on the tab near the right side labeled "Courses" to find more help for Nursing 220.
With both of these databases you will have the opportunity to put your search topic into several search boxes to find exactly what you are looking for. If you run into any trouble, please contact the library at 330-490-7185 or library@walsh.edu.