At the top of the page in most book records in the Catalogue (excluding ebooks and books marked as "In Library Use"), there is a blue button that says Request Item for Pickup. Click on it.
On the next page, enter your NSID and password. Then choose the Pickup Location of your choice by using the drop-down menu. Your two options are currently Murray Library and Distance Learner. Choose Murray Library for Self-Service Contactless Pickup or Distance Learner to have the books sent through the mail (be sure to register!). Click on the green GO button. This will bring you to a new page.
Click on REQUEST SELECTED ITEM to confirm your choice, and then you're done!