Significant school extension records : how to secure them - Perry, Clarence Arthur, 1872-1944. (Washington : G.P.O., 1915)
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.
Keywords: School facilities -- Extended use -- United States -- Statistics