Churchhill, E. M. (1961). Counting and measuring: An approach to number education in the primary school. Rotledge and Paul.
Chicago-Zitierstil (17. Ausg.)Churchhill, Eileen M. Counting and Measuring: An Approach to Number Education in the Primary School. London: Rotledge and Paul, 1961.
MLA-Zitierstil (9. Ausg.)Churchhill, Eileen M. Counting and Measuring: An Approach to Number Education in the Primary School. Rotledge and Paul, 1961.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.