Zotero

From within Zotero Desktop you can also search for references using ISBN, DOI or PubMed ID. 

• Click on the Add Item(s) by Identifier button (top of your library)
• Type the identifier in the look up box. Zotero will find the reference and add it to your library. 

Always check your references to make sure they have imported correctly, with information in the correct fields.

See checking reference details.