By Laton, Anita Duncan Elizabeth.
New York Teachers College, Columbia University 1939 .
3 p.l., [v]-viii p., 1 l., 66 p. , "Monograph number one, Bureau of educational research in science, Teachers college, Columbia university."

By Bailey, Edna Watson.
New York | London McGraw-Hill Book Company, inc. 1939 .
vii, 182 p. , First edition, 1933, has title: Outline for study of children in shools. 29 cm..