Results may be returned in different forms.

ID returns only the name + year + first-word identifier of each found item.  It is primarily intended for computer - to - computer applications.

CITATION returns the full author(s), title, and links to on-line texts if available.   The cite link will pop up a window that contains citation information in Harvard, ALA, Chicago, MLA, and BibTeX formats.  The SELECT buttons in the citation window highlight the full text of a citation for easy copy - and - paste.

BIBTEX returns the BiBTeX entry for the text.  Like ID, it is used mainly by computer-generated queries.