Harlen, W. (1983). New trends in primary school science education. Paris : Unesco.
Čikaški stil citiranja (17. izdanje)Harlen, Wynne. New Trends in Primary School Science Education. Paris : Unesco, 1983.
MLA način citiranja (9. izdanje)Harlen, Wynne. New Trends in Primary School Science Education. Paris : Unesco, 1983.
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