There are 2 types of action buttons: “Check Holdings” and “View Online”.
Clicking the action button of item 2 "View Online" will take you to the website:
The other action button "Check Holdings" will tell you whether that title in physical format is available for use in the Library such as the following:
Some are “Unavailable” (item 5 & 6). Item 5 with a Call No. is unavailable because it is on loan. However, item 6 without a Call No. is likely to be on order.
For those items with no action button, such as the following title, the Library does not have a copy.
2584-8510 
