Glenn, Earl R.  1887- <br/><br/>
Bibliography of science teaching in secondary schools / 
compiled by Earl R. Glenn ; assisted by Josephine Walker. 
 - Washington :  G.P.O.,  1925. 
 - x, 161 p. ;  23 cm. 
 - Bulletin / Department of the Interior, Bureau of Education ;  1925, no. 13 .
 - Bulletin (United States. Bureau of Education) ;  1925, no. 13 .
<br/><br/><label>LCCN: </label>e  25000186  
<br/><br/><label>LC Class. No.: </label>Z5814.S5  / G5