Encyclopedia of Educational Research, 4v. Topically arranged, hence use of index is a necessity. Some subjects, for which research was not available or accessible, are not treated. Encyclopedia of Special Education, 3v. 2000 References all types of handicapped and exceptional children.
Coverage includes some court cases, laws, tests, etc.
International Encyclopedia of Education, 12v. Includes overviews of systems of education in various countries. Covers the subject from ancient Greece to the present. Entries are annotated, grouped by subject, and represent material published after 1980. A comprehensive evaluation of the current state of the field.