Hughes, E. R., & Rogers, J. (1979). Conceptual powers of children: An approach through mathematics and science : a report from the Schools Council project on the Development of Scientific and Mathematical Concepts (7-11), based at University College of North Wales, Bangor. Macmillan Education.
Citace podle Chicago (17th ed.)Hughes, Eryl Rothwell, a Joseph Rogers. Conceptual Powers of Children: An Approach Through Mathematics and Science : A Report from the Schools Council Project on the Development of Scientific and Mathematical Concepts (7-11), Based at University College of North Wales, Bangor. Basingstoke [Eng.]: Macmillan Education, 1979.
Citace podle MLA (8th ed.)Hughes, Eryl Rothwell, a Joseph Rogers. Conceptual Powers of Children: An Approach Through Mathematics and Science : A Report from the Schools Council Project on the Development of Scientific and Mathematical Concepts (7-11), Based at University College of North Wales, Bangor. Macmillan Education, 1979.