Cook, Katherine Margaret O'Brien. <br/><br/>
State laws and regulations governing teachers' certificates, 
by Katherine M. Cook, chief, Division of rural education, Bureau of education. 
 - Washington,  U.S. Govt. print. off.,  1928. 
 - v, 296 p.  incl. tables, diagrs.  23 cm. 
 - [U.S.] Bureau of education. Bulletin, 1927,  no. 19 .
<br/><br/> At head of title: Department of the interior... 
<br/><br/><label>LCCN: </label>e  28000016  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Teachers--United States.
<br/><br/><label>LC Class. No.: </label>LB111  / .A6