Harlen, W. (1983). New trends in primary school science education. Paris : Unesco.
Chicago Style (17th ed.) CitationHarlen, Wynne. New Trends in Primary School Science Education. Paris : Unesco, 1983.
MLA引文Harlen, Wynne. New Trends in Primary School Science Education. Paris : Unesco, 1983.
警告:這些引文格式不一定是100%准確.