Não informado. (1968). Journal of Educational Measurement. National Council on Measurement in Education.
Chicago-Zitierstil (17. Ausg.)Não informado. Journal of Educational Measurement. Washington: National Council on Measurement in Education, 1968.
MLA-Zitierstil (8. Ausg.)Não informado. Journal of Educational Measurement. National Council on Measurement in Education, 1968.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.