To what
extent does a source cover a topic? Is the information broad
in scope, or does it focus on one specific aspect of the subject?
Does it address a topic from a certain timeframe and/or geographic
area?
The sooner
you clarify your research topic, the easier it will be to
identify useful sources.
TIPS
- Review
the major sections or chapters
-
Determine
the length
- Read
abstracts when they are available
- Look
at the subject
headings assigned to the work using a catalog
or database record