Bases for effective learning.
Series: National elementary principal -- v. 32, no. 1, Sept. 1952; National Education Association of the United States. Dept. of Elementary School Principals. Yearbook -- 1952; Yearbook (National Education Association of the United States. Dept. of Elementary School Principals) -- 1952.
Publisher: The Association
Published: 1952
Place of publication: [Washington]
Language: eng
Number of pages: 390
Subjects: Education, Elementary -- 1945-