Perry, Clarence Arthur,  1872-1944. <br/><br/>
Significant school extension records :  how to secure them / 
by Clarence Arthur Perry. 
 - Washington :  G.P.O.,  1915. 
 - 36 p. :  incl. tables ;  23 cm. 
 - Bulletin / Dept. of the Interior, Office of Education ;  1915, no. 41 .
 - Bulletin (United States. Bureau of Education) ;  1915, no. 41 .
<br/><br/>Copies 1 and 2 of L111.A6 with: Mathematics in the lower and middle commercial and industrial schools of various countries represented in the International Commission on the Teaching of Mathematics / E.H. Taylor. Washington : Govt. Print. Off., 1915. Bound together subsequent to publication. 
<br/><br/><label>LCCN: </label>e  15002835  
<br/><br/><label>Subjects--Topical Terms: </label><br/>School facilities--Extended use--Statistics.--United States
<br/><br/><label>LC Class. No.: </label>L111  / .A6 1915, no. 41 
<br/><br/><label>Dewey Class. No.: </label>370.6173