Harlen, W. (1983). New trends in primary school science education. Unesco.
Chicagoスタイル(17版)引用形式Harlen, Wynne. New Trends in Primary School Science Education. Paris: Unesco, 1983.
MLA(9版)引用形式Harlen, Wynne. New Trends in Primary School Science Education. Unesco, 1983.
警告: この引用は必ずしも正確ではありません.