If you are not familiar with scholarly publications, it can be difficult to tell the difference between scholarly and popular periodicals. There are no definitive rules for distinguishing between the two, but here are some guidelines:
Scholarly (e.g., academic journals):
Popular (e.g., magazines, newspapers):
Search a database to find journal, magazine, or newspaper articles. Some databases also provide access to other materials such as dissertations, book chapters, books, sound recordings, videos, etc.
Some databases have the full text or abstracts (summaries) of articles, if not, follow these instructions to figure out if the library has the journal.
These databases cover NAS and other disciplines.
These databases provide access to material in various subject areas that have proven useful to NAS students in the past. Think about your topic, and decide which subject database, below, may cover it. Other subjects, and links to relevant databases, are listed here: http://libraries.ou.edu/eresources/ and research guides here: http://guides.ou.edu.