volumes <1-2 > : illustrations ; 25 cm + supplement
Notes
"Report on the 1979 primary survey from the National Foundation for Educational Research in England and Wales to the Department of Education and Science, the Welsh Office, and the Department of Education for Northern Ireland."
At head of title: Assessment of Performance Unit
Includes additional supplement (15 p.): Wales inserted in v. 2
Suppl. consist of educational materials in pamphlet form inserted in pockets at end of vol