370.973 Har H Harris, Seymour Edwin, 1897- Challenge and change in American education Edited by Seymour E. Harris, Kenneth M. Deitch and Alan Levensohn. Introd. by Seymour E. Harris: coemntaries by Kenneth M. Deitch. berkeley, Calif. McGutchan Pub. [c1965] xi, 346 p. 23 cm. Notas bibliográficas al pie de las páginas.