Measurement of time and linear measure : graded tests in one-step problems : tentative teaching and testing materials /
North Illinois Conference on Supervision.Committee of Seven.
Scottish Council for Research in Education,former owner.NLS
Winnetka : Winnetka Educational Press,
[19--]
Provenance: 20th-century ink stamp on cover: The Scottish Council for Research in Education, 48 Moray Place, Edinburgh, 3.