Centre for Educational Research and Innovation. (1991). Environment, schools and active learning. Paris, France: OECD.
Παραπομπή Chicago StyleCentre for Educational Research and Innovation. Environment, Schools and Active Learning. Paris, France: OECD, 1991.
Παραπομπή MLACentre for Educational Research and Innovation. Environment, Schools and Active Learning. Paris, France: OECD, 1991.
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