Once you have added some citations to your document you can create a reference list. Place your cursor at the end of your document where you would like your reference list to start and click on Add/Edit Bibliography.
The bibliography will be formatted according to the citation style you have chosen.
Each time you add a citation or make changes to your citations, the bibliography will restructure itself accordingly. For example, if you are using a numbered style and you choose to insert new citations early in the document, the bibliography will also re-number itself.