Inventories of Apparatus and Materials for Teaching Science: Vol.III 

 - United Nations:  Education, Scientific and Cultural Organization,  1954. 
 - 147p.;  23cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Teaching of science in secondary schools
<br/><br/><label>Dewey Class. No.: </label>375.8  / INV