Citation management tools can save time and frustration. Zotero is an extremely useful and capable resource that also aids citation (and full-text article) organization.
There are other means of rendering citations such as PubMed, Medline, Google Scholar and Worldcat.org.
Citation generation is available in several ways: Google Scholar’s “Cite” and WorldCat Research Station’s “Cite/Export” are very useful. Business Source Complete (like all of the EBSCOhost databases) provides citation creation. There are also tools like EasyBib available.
A citation management like Zotero can be useful in creating, organizing and presenting citations.