Abstracts are summaries of articles. The abstract is not the entire article and should not be quoted.
Bibliographies/Reference List are lists of articles, books, websites, films and other materials to help you find information on a topic. Not full-text. Use these to find other relevant sources.
Full-text refers to an entire article or book available for online viewing.
Databases are a one-stop shop for getting scholarly articles on a topic. If you are off campus they will require your HSU ID and password to access.