The Oxford Guide to Library Research
Generally, the library also indicates the desired level of collecting. One approach makes use of a five value system: 0—out of scope; 1—minimal; 2—basic information; 3—instructional level; and 4—research level.
Margaret Saponaro • Collection Management Basics (Library and Information Science Text Series)
Library and Archives Canada:
Margaret Saponaro • Collection Management Basics (Library and Information Science Text Series)
Bulletin of the Center for Children’s Books, a