The Walsh library has a detailed research guide for legal resources.
In Nexis Uni there is an easy way to look up a case by citation.
Let's say you want to find 467 U.S. 561.
After logging into the portal, select databases from the Library tab.
Scroll down to the Nexis Uni database.
In the search box enter 467 US 561
Hit Enter.
Access the Nexis Uni database by clicking on the above link.
Under the Guided Search:
Click on Cases
For Jurisdiction Choose: Federal
in the ...about box enter the party names.
Example: firefighters v stotts.
More books can be found in the EBSCO eBook Collection database.
An Introduction to U. S. Collective Bargaining and Labor Relations by 
Essential Guide to Federal Employment Laws by 
An Introduction to Labor Law by 
Fair, Square and Legal by