---

New directions in science teaching : a report of a cooperative project in seventeen secondary schools with the Bureau of Educational Research in Science Teachers College, Columbia University / by Anita Duncan Laton and Samuel Ralph Powers

資料タイプ	図書
出版者	New York : McGraw-Hill
出版年	c1949
本文言語	英語
大きさ	xi, 164 p. ; 21 cm