School science teaching:report of an expert conferrence held at the university of ceylon peradeniya, december 1963.
School science teaching:report of an expert conferrence held at the university of ceylon peradeniya, december 1963.
- London: Her majesty's stationery office, 1964.
- 140p. 23cm
Education, research & related topics
507 / SCH
Education, research & related topics
507 / SCH