Toothaker, Charles R.  1873-1952. <br/><br/>
Educational work of the Commercial Museum of Philadelphia / 
by Charles R. Toothaker. 
 - Washington :  G.P.O.,  1921. 
 - 28 p., 12 p. of plates :  ill. ;  23 cm. 
 - Bulletin / Department of the Interior, Bureau of Education ;  1920, no. 13 .
 - Bulletin (United States. Bureau of Education) ;  1920, no. 13 .
<br/><br/> Copy 1 bound with: Bulletin / United States. Bureau of Education, 1920, no. 14-1920, no. 23, subsequent to publication. 
<br/><br/><label>LCCN: </label>e  21000362  
<br/><br/><label>Subjects--Corporate Names: </label><br/>Commercial Museum (Philadelphia, Pa.)
<br/><br/><label>LC Class. No.: </label>L111  / .A6 1920, no. 13