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.
|Main Author:||Laton, Anita Duncan, 1895-|
|Other Authors:||Powers, Samuel Ralph, 1887-1970.|
New York, McGraw-Hill Book Co. 
> Study and teaching
xi, 164 p.
|Original Classification Number:||LB 1647 .L36|
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