ZoteroBib stores your work in the browser on the computer you're currently using. If you clear your browser cache, it deletes the bibliography.
You can use the Link to This Version feature to create a version you can send to someone else.
Go to ZBib.org.
Your bibliography appears on the page as you add sources. Use the blue bar to choose your citation style.
To delete a source
Mouse over it and click the X button that appears to the right.
To create an in-text citation or footnote