Ahlstrom, K., & Jonsson, M. (1980). Flexible grouping of pupils and team-work between teachers. Uppsala : distributor Almquist & Wiksell International.
Citace podle Chicago (17th ed.)Ahlstrom, Karl-Georg, a Maud Jonsson. Flexible Grouping of Pupils and Team-work Between Teachers. Stockholm: Uppsala : distributor Almquist & Wiksell International, 1980.
Citace podle MLA (8th ed.)Ahlstrom, Karl-Georg, a Maud Jonsson. Flexible Grouping of Pupils and Team-work Between Teachers. Uppsala : distributor Almquist & Wiksell International, 1980.
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